20463592040 has 64 divisors (see below), whose sum is σ = 48507811200. Its totient is φ = 7747999488.

The previous prime is 20463592033. The next prime is 20463592043. The reversal of 20463592040 is 4029536402.

It is not an unprimeable number, because it can be changed into a prime (20463592043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 929237 + ... + 951003.

It is an arithmetic number, because the mean of its divisors is an integer number (757934550).

Almost surely, 2^20463592040 is an apocalyptic number.

20463592040 is a gapful number since it is divisible by the number (20) 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 20463592040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24253905600).

20463592040 is an abundant number, since it is smaller than the sum of its proper divisors (28044219160).

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

20463592040 is a wasteful number, since it uses less digits than its factorization.

20463592040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23034 (or 23030 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 20463592040 in words is "twenty billion, four hundred sixty-three million, five hundred ninety-two thousand, forty".