426581320 has 32 divisors (see below), whose sum is σ = 1047064320. Its totient is φ = 155120320.

The previous prime is 426581317. The next prime is 426581321. The reversal of 426581320 is 23185624.

It is not an unprimeable number, because it can be changed into a prime (426581321) 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, 484312 + ... + 485191.

It is an arithmetic number, because the mean of its divisors is an integer number (32720760).

Almost surely, 2^426581320 is an apocalyptic number.

426581320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

426581320 is an abundant number, since it is smaller than the sum of its proper divisors (620483000).

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

426581320 is a wasteful number, since it uses less digits than its factorization.

426581320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969525 (or 969521 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 426581320 is about 20653.8451625841. The cubic root of 426581320 is about 752.7786233273.

The spelling of 426581320 in words is "four hundred twenty-six million, five hundred eighty-one thousand, three hundred twenty".