1487729970 has 64 divisors (see below), whose sum is σ = 3987360000. Its totient is φ = 394720128.

The previous prime is 1487729951. The next prime is 1487729987. The reversal of 1487729970 is 799277841.

1487729970 is a `hidden beast` number, since 1 + 487 + 7 + 2 + 99 + 70 = 666.

1487729970 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39886 + ... + 67574.

It is an arithmetic number, because the mean of its divisors is an integer number (62302500).

Almost surely, 2^1487729970 is an apocalyptic number.

1487729970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1487729970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1993680000).

1487729970 is an abundant number, since it is smaller than the sum of its proper divisors (2499630030).

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

1487729970 is a wasteful number, since it uses less digits than its factorization.

1487729970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27904 (or 27898 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The square root of 1487729970 is about 38571.1027843384. The cubic root of 1487729970 is about 1141.5844312040.

The spelling of 1487729970 in words is "one billion, four hundred eighty-seven million, seven hundred twenty-nine thousand, nine hundred seventy".