426246664 has 16 divisors (see below), whose sum is σ = 807127020. Its totient is φ = 211012800.

The previous prime is 426246607. The next prime is 426246677. The reversal of 426246664 is 466642624.

It can be written as a sum of positive squares in 2 ways, for example, as 403608100 + 22638564 = 20090^2 + 4758^2 .

It is a super-2 number, since 2×426246664² = 363372437142257792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262959 + ... + 264574.

Almost surely, 2^426246664 is an apocalyptic number.

It is an amenable number.

426246664 is a deficient number, since it is larger than the sum of its proper divisors (380880356).

426246664 is a wasteful number, since it uses less digits than its factorization.

426246664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527640 (or 527636 counting only the distinct ones).

The product of its digits is 331776, while the sum is 40.

The square root of 426246664 is about 20645.7420307433. The cubic root of 426246664 is about 752.5817184794.

The spelling of 426246664 in words is "four hundred twenty-six million, two hundred forty-six thousand, six hundred sixty-four".