426240440 has 32 divisors (see below), whose sum is σ = 961789680. Its totient is φ = 170007552.

The previous prime is 426240413. The next prime is 426240443. The reversal of 426240440 is 44042624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426240443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974 + ... + 29213.

Almost surely, 2^426240440 is an apocalyptic number.

426240440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

426240440 is an abundant number, since it is smaller than the sum of its proper divisors (535549240).

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

426240440 is a wasteful number, since it uses less digits than its factorization.

426240440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30551 (or 30547 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 426240440 is about 20645.5912969331. The cubic root of 426240440 is about 752.5780554271.

The spelling of 426240440 in words is "four hundred twenty-six million, two hundred forty thousand, four hundred forty".