426805440 has 56 divisors (see below), whose sum is σ = 1355110320. Its totient is φ = 113814528.

The previous prime is 426805433. The next prime is 426805453. The reversal of 426805440 is 44508624.

It is a super-2 number, since 2×426805440² = 364325767227187200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221335 + ... + 223254.

Almost surely, 2^426805440 is an apocalyptic number.

426805440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

426805440 is an abundant number, since it is smaller than the sum of its proper divisors (928304880).

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

426805440 is a wasteful number, since it uses less digits than its factorization.

426805440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444609 (or 444599 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 426805440 is about 20659.2700742306. The cubic root of 426805440 is about 752.9104334491.

The spelling of 426805440 in words is "four hundred twenty-six million, eight hundred five thousand, four hundred forty".