1900900918 has 16 divisors (see below), whose sum is σ = 3400369920. Its totient is φ = 779251176.

The previous prime is 1900900913. The next prime is 1900900919. The reversal of 1900900918 is 8190090091.

It is a super-2 number, since 2×1900900918² = 7226848600106485448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900900913) 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, 2951388 + ... + 2952031.

It is an arithmetic number, because the mean of its divisors is an integer number (212523120).

Almost surely, 2^1900900918 is an apocalyptic number.

1900900918 is a deficient number, since it is larger than the sum of its proper divisors (1499469002).

1900900918 is a wasteful number, since it uses less digits than its factorization.

1900900918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5903451.

The product of its (nonzero) digits is 5832, while the sum is 37.

The square root of 1900900918 is about 43599.3224488638. The cubic root of 1900900918 is about 1238.7580606438.

The spelling of 1900900918 in words is "one billion, nine hundred million, nine hundred thousand, nine hundred eighteen".