20140232320 has 64 divisors (see below), whose sum is σ = 51851436840. Its totient is φ = 7436390400.

The previous prime is 20140232309. The next prime is 20140232347. The reversal of 20140232320 is 2323204102.

It can be written as a sum of positive squares in 4 ways, for example, as 11139535936 + 9000696384 = 105544^2 + 94872^2 .

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

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, 1202031 + ... + 1218670.

Almost surely, 2^20140232320 is an apocalyptic number.

20140232320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20140232320 is an abundant number, since it is smaller than the sum of its proper divisors (31711204520).

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

20140232320 is a wasteful number, since it uses less digits than its factorization.

20140232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420733 (or 2420721 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20140232320 its reverse (2323204102), we get a palindrome (22463436422).

The spelling of 20140232320 in words is "twenty billion, one hundred forty million, two hundred thirty-two thousand, three hundred twenty".