426565040 has 40 divisors (see below), whose sum is σ = 1081926288. Its totient is φ = 155114240.

The previous prime is 426565021. The next prime is 426565043. The reversal of 426565040 is 40565624.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 426564988 and 426565006.

It is not an unprimeable number, because it can be changed into a prime (426565043) 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, 241487 + ... + 243246.

Almost surely, 2^426565040 is an apocalyptic number.

426565040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

426565040 is an abundant number, since it is smaller than the sum of its proper divisors (655361248).

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

426565040 is a wasteful number, since it uses less digits than its factorization.

426565040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484757 (or 484751 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 426565040 is about 20653.4510433487. The cubic root of 426565040 is about 752.7690468868.

The spelling of 426565040 in words is "four hundred twenty-six million, five hundred sixty-five thousand, forty".