1900917432 has 48 divisors (see below), whose sum is σ = 5372162640. Its totient is φ = 606089088.

The previous prime is 1900917391. The next prime is 1900917463. The reversal of 1900917432 is 2347190091.

1900917432 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1900917432² = 7226974166562949248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 572293 + ... + 575604.

It is an arithmetic number, because the mean of its divisors is an integer number (111920055).

Almost surely, 2^1900917432 is an apocalyptic number.

1900917432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1900917432 is an abundant number, since it is smaller than the sum of its proper divisors (3471245208).

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

1900917432 is a wasteful number, since it uses less digits than its factorization.

1900917432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147932 (or 1147925 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1900917432 is about 43599.5118321295. The cubic root of 1900917432 is about 1238.7616478537.

The spelling of 1900917432 in words is "one billion, nine hundred million, nine hundred seventeen thousand, four hundred thirty-two".