1487600820 has 288 divisors, whose sum is σ = 5024073600. Its totient is φ = 354751488.

The previous prime is 1487600797. The next prime is 1487600833. The reversal of 1487600820 is 280067841.

1487600820 is a `hidden beast` number, since 1 + 48 + 7 + 600 + 8 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5256399 + ... + 5256681.

It is an arithmetic number, because the mean of its divisors is an integer number (17444700).

Almost surely, 2^1487600820 is an apocalyptic number.

1487600820 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 1487600820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2512036800).

1487600820 is an abundant number, since it is smaller than the sum of its proper divisors (3536472780).

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

1487600820 is a wasteful number, since it uses less digits than its factorization.

1487600820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 1487600820 is about 38569.4285671955. The cubic root of 1487600820 is about 1141.5513965587.

The spelling of 1487600820 in words is "one billion, four hundred eighty-seven million, six hundred thousand, eight hundred twenty".