426575394 has 72 divisors (see below), whose sum is σ = 1082008512. Its totient is φ = 118979280.

The previous prime is 426575381. The next prime is 426575417. The reversal of 426575394 is 493575624.

426575394 is a `hidden beast` number, since 42 + 6 + 575 + 39 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 232059 + ... + 233889.

It is an arithmetic number, because the mean of its divisors is an integer number (15027896).

Almost surely, 2^426575394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426575394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541004256).

426575394 is an abundant number, since it is smaller than the sum of its proper divisors (655433118).

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

426575394 is a wasteful number, since it uses less digits than its factorization.

426575394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932 (or 1886 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 426575394 is about 20653.7017021163. The cubic root of 426575394 is about 752.7751374841.

The spelling of 426575394 in words is "four hundred twenty-six million, five hundred seventy-five thousand, three hundred ninety-four".