564400426 has 8 divisors (see below), whose sum is σ = 860479524. Its totient is φ = 277573920.

The previous prime is 564400387. The next prime is 564400433. The reversal of 564400426 is 624004465.

It can be written as a sum of positive squares in 2 ways, for example, as 396049801 + 168350625 = 19901^2 + 12975^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2312995 + ... + 2313238.

Almost surely, 2^564400426 is an apocalyptic number.

564400426 is a deficient number, since it is larger than the sum of its proper divisors (296079098).

564400426 is a wasteful number, since it uses less digits than its factorization.

564400426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626296.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 564400426 is about 23757.1131663761. The cubic root of 564400426 is about 826.4104070062.

The spelling of 564400426 in words is "five hundred sixty-four million, four hundred thousand, four hundred twenty-six".