1530989904 has 40 divisors (see below), whose sum is σ = 4163220640. Its totient is φ = 483470208.

The previous prime is 1530989903. The next prime is 1530989909. The reversal of 1530989904 is 4099890351.

It is a super-2 number, since 2×1530989904² = 4687860172299858432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530989903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838447 + ... + 840270.

It is an arithmetic number, because the mean of its divisors is an integer number (104080516).

Almost surely, 2^1530989904 is an apocalyptic number.

It is an amenable number.

1530989904 is an abundant number, since it is smaller than the sum of its proper divisors (2632230736).

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

1530989904 is a wasteful number, since it uses less digits than its factorization.

1530989904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678747 (or 1678741 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 1530989904 is about 39127.8660803269. The cubic root of 1530989904 is about 1152.5438091267.

The spelling of 1530989904 in words is "one billion, five hundred thirty million, nine hundred eighty-nine thousand, nine hundred four".