1900442680 has 16 divisors (see below), whose sum is σ = 4275996120. Its totient is φ = 760177056.

The previous prime is 1900442671. The next prime is 1900442707. The reversal of 1900442680 is 862440091.

It is a super-2 number, since 2×1900442680² = 7223364759931164800, 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 3 ways as a sum of consecutive naturals, for example, 23755494 + ... + 23755573.

Almost surely, 2^1900442680 is an apocalyptic number.

1900442680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1900442680 is an abundant number, since it is smaller than the sum of its proper divisors (2375553440).

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

1900442680 is a wasteful number, since it uses less digits than its factorization.

1900442680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47511078 (or 47511074 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1900442680 is about 43594.0670275211. The cubic root of 1900442680 is about 1238.6585128224.

The spelling of 1900442680 in words is "one billion, nine hundred million, four hundred forty-two thousand, six hundred eighty".