426634240 has 88 divisors (see below), whose sum is σ = 1034635680. Its totient is φ = 168787968.

The previous prime is 426634237. The next prime is 426634267. The reversal of 426634240 is 42436624.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526956 + ... + 527764.

Almost surely, 2^426634240 is an apocalyptic number.

426634240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426634240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517317840).

426634240 is an abundant number, since it is smaller than the sum of its proper divisors (608001440).

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

426634240 is a wasteful number, since it uses less digits than its factorization.

426634240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 426634240 is about 20655.1262402339. The cubic root of 426634240 is about 752.8097509581.

The spelling of 426634240 in words is "four hundred twenty-six million, six hundred thirty-four thousand, two hundred forty".