426255640 has 32 divisors (see below), whose sum is σ = 959850000. Its totient is φ = 170364544.

The previous prime is 426255623. The next prime is 426255647. The reversal of 426255640 is 46552624.

It is a junction number, because it is equal to n+sod(n) for n = 426255596 and 426255605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426255647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56406 + ... + 63514.

Almost surely, 2^426255640 is an apocalyptic number.

426255640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

426255640 is an abundant number, since it is smaller than the sum of its proper divisors (533594360).

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

426255640 is a wasteful number, since it uses less digits than its factorization.

426255640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8619 (or 8615 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 426255640 is about 20645.9594109840. The cubic root of 426255640 is about 752.5870011218.

The spelling of 426255640 in words is "four hundred twenty-six million, two hundred fifty-five thousand, six hundred forty".