1487898720 has 864 divisors, whose sum is σ = 6776130816. Its totient is φ = 304819200.

The previous prime is 1487898703. The next prime is 1487898743. The reversal of 1487898720 is 278987841.

It is a happy number.

1487898720 is a `hidden beast` number, since 1 + 487 + 8 + 98 + 72 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 20956285 + ... + 20956355.

It is an arithmetic number, because the mean of its divisors is an integer number (7842744).

Almost surely, 2^1487898720 is an apocalyptic number.

1487898720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1487898720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3388065408).

1487898720 is an abundant number, since it is smaller than the sum of its proper divisors (5288232096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1487898720 is a wasteful number, since it uses less digits than its factorization.

1487898720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 54.

The square root of 1487898720 is about 38573.2902407871. The cubic root of 1487898720 is about 1141.6275920584.

The spelling of 1487898720 in words is "one billion, four hundred eighty-seven million, eight hundred ninety-eight thousand, seven hundred twenty".