406315402 has 8 divisors (see below), whose sum is σ = 645324516. Its totient is φ = 191207232.

The previous prime is 406315391. The next prime is 406315417. The reversal of 406315402 is 204513604.

It can be written as a sum of positive squares in 2 ways, for example, as 324756441 + 81558961 = 18021^2 + 9031^2 .

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, 5975193 + ... + 5975260.

Almost surely, 2^406315402 is an apocalyptic number.

406315402 is a deficient number, since it is larger than the sum of its proper divisors (239009114).

406315402 is a wasteful number, since it uses less digits than its factorization.

406315402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11950472.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 406315402 is about 20157.2667293956. The cubic root of 406315402 is about 740.6637592088.

The spelling of 406315402 in words is "four hundred six million, three hundred fifteen thousand, four hundred two".