426992560 has 20 divisors (see below), whose sum is σ = 992757888. Its totient is φ = 170796992.

The previous prime is 426992557. The next prime is 426992561. The reversal of 426992560 is 65299624.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (426992561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2668624 + ... + 2668783.

Almost surely, 2^426992560 is an apocalyptic number.

426992560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

426992560 is an abundant number, since it is smaller than the sum of its proper divisors (565765328).

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

426992560 is a wasteful number, since it uses less digits than its factorization.

426992560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337420 (or 5337414 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 426992560 is about 20663.7982955700. The cubic root of 426992560 is about 753.0204476798.

The spelling of 426992560 in words is "four hundred twenty-six million, nine hundred ninety-two thousand, five hundred sixty".