1920930432 has 64 divisors (see below), whose sum is σ = 5159894400. Its totient is φ = 633104384.

The previous prime is 1920930383. The next prime is 1920930439. The reversal of 1920930432 is 2340390291.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 1920930393 and 1920930402.

It is not an unprimeable number, because it can be changed into a prime (1920930439) 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, 6073 + ... + 62279.

It is an arithmetic number, because the mean of its divisors is an integer number (80623350).

Almost surely, 2^1920930432 is an apocalyptic number.

1920930432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1920930432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2579947200).

1920930432 is an abundant number, since it is smaller than the sum of its proper divisors (3238963968).

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

1920930432 is an equidigital number, since it uses as much as digits as its factorization.

1920930432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56313 (or 56301 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 1920930432 is about 43828.4203685234. The cubic root of 1920930432 is about 1243.0937386091.

The spelling of 1920930432 in words is "one billion, nine hundred twenty million, nine hundred thirty thousand, four hundred thirty-two".