426021426 has 24 divisors (see below), whose sum is σ = 954876780. Its totient is φ = 137110176.

The previous prime is 426021403. The next prime is 426021457. The reversal of 426021426 is 624120624.

426021426 is a `hidden beast` number, since 42 + 602 + 14 + 2 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 401962401 + 24059025 = 20049^2 + 4905^2 .

It is a super-2 number, since 2×426021426² = 362988510822146952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 426021426.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 407545 + ... + 408588.

Almost surely, 2^426021426 is an apocalyptic number.

426021426 is an abundant number, since it is smaller than the sum of its proper divisors (528855354).

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

426021426 is a wasteful number, since it uses less digits than its factorization.

426021426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816170 (or 816167 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 426021426 is about 20640.2864805700. The cubic root of 426021426 is about 752.4491349452.

The spelling of 426021426 in words is "four hundred twenty-six million, twenty-one thousand, four hundred twenty-six".