426745432920 has 128 divisors (see below), whose sum is σ = 1297049241600. Its totient is φ = 112307241984.

The previous prime is 426745432903. The next prime is 426745432921. The reversal of 426745432920 is 29234547624.

It is a super-2 number, since 2×426745432920² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 426745432920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426745432921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9469401 + ... + 9514359.

It is an arithmetic number, because the mean of its divisors is an integer number (10133197200).

Almost surely, 2^426745432920 is an apocalyptic number.

426745432920 is a gapful number since it is divisible by the number (40) 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 426745432920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648524620800).

426745432920 is an abundant number, since it is smaller than the sum of its proper divisors (870303808680).

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

426745432920 is a wasteful number, since it uses less digits than its factorization.

426745432920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46009 (or 46005 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 426745432920 in words is "four hundred twenty-six billion, seven hundred forty-five million, four hundred thirty-two thousand, nine hundred twenty".