1897118004 has 24 divisors (see below), whose sum is σ = 4659588640. Its totient is φ = 599089824.

The previous prime is 1897117991. The next prime is 1897118021. The reversal of 1897118004 is 4008117981.

It is a super-2 number, since 2×1897118004² = 7198113442201888032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4160119 + ... + 4160574.

Almost surely, 2^1897118004 is an apocalyptic number.

It is an amenable number.

1897118004 is an abundant number, since it is smaller than the sum of its proper divisors (2762470636).

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

1897118004 is a wasteful number, since it uses less digits than its factorization.

1897118004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8320719 (or 8320717 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 39.

The square root of 1897118004 is about 43555.9181283095. The cubic root of 1897118004 is about 1237.9357791030.

The spelling of 1897118004 in words is "one billion, eight hundred ninety-seven million, one hundred eighteen thousand, four".