426265840 has 160 divisors (see below), whose sum is σ = 1330914816. Its totient is φ = 122618880.

The previous prime is 426265823. The next prime is 426265843. The reversal of 426265840 is 48562624.

It is a self number, because there is not a number n which added to its sum of digits gives 426265840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426265843) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 77419 + ... + 82741.

Almost surely, 2^426265840 is an apocalyptic number.

426265840 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 426265840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665457408).

426265840 is an abundant number, since it is smaller than the sum of its proper divisors (904648976).

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

426265840 is a wasteful number, since it uses less digits than its factorization.

426265840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5367 (or 5361 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 426265840 is about 20646.2064312067. The cubic root of 426265840 is about 752.5930040345.

The spelling of 426265840 in words is "four hundred twenty-six million, two hundred sixty-five thousand, eight hundred forty".