406427925290 has 32 divisors (see below), whose sum is σ = 732408391440. Its totient is φ = 162385035264.

The previous prime is 406427925269. The next prime is 406427925301. The reversal of 406427925290 is 92529724604.

It is a Cunningham number, because it is equal to 637517²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 91149044281 + 315278881009 = 301909^2 + 561497^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39557594 + ... + 39567866.

Almost surely, 2^406427925290 is an apocalyptic number.

406427925290 is a deficient number, since it is larger than the sum of its proper divisors (325980466150).

406427925290 is a wasteful number, since it uses less digits than its factorization.

406427925290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14426.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 406427925290 in words is "four hundred six billion, four hundred twenty-seven million, nine hundred twenty-five thousand, two hundred ninety".