426394064 has 20 divisors (see below), whose sum is σ = 827014404. Its totient is φ = 212971008.

The previous prime is 426394049. The next prime is 426394081. The reversal of 426394064 is 460493624.

It can be written as a sum of positive squares in 2 ways, for example, as 259467664 + 166926400 = 16108^2 + 12920^2 .

It is a congruent number.

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, 1994 + ... + 29270.

Almost surely, 2^426394064 is an apocalyptic number.

It is an amenable number.

426394064 is a deficient number, since it is larger than the sum of its proper divisors (400620340).

426394064 is a wasteful number, since it uses less digits than its factorization.

426394064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28262 (or 28256 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 426394064 is about 20649.3114655187. The cubic root of 426394064 is about 752.6684583651.

The spelling of 426394064 in words is "four hundred twenty-six million, three hundred ninety-four thousand, sixty-four".