405413402 has 8 divisors (see below), whose sum is σ = 608447700. Its totient is φ = 202597504.

The previous prime is 405413389. The next prime is 405413447. The reversal of 405413402 is 204314504.

It can be written as a sum of positive squares in 2 ways, for example, as 390813361 + 14600041 = 19769^2 + 3821^2 .

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, 49877 + ... + 57432.

Almost surely, 2^405413402 is an apocalyptic number.

405413402 is a deficient number, since it is larger than the sum of its proper divisors (203034298).

405413402 is a wasteful number, since it uses less digits than its factorization.

405413402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109200.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 405413402 is about 20134.8802330682. The cubic root of 405413402 is about 740.1152742262.

Adding to 405413402 its reverse (204314504), we get a palindrome (609727906).

The spelling of 405413402 in words is "four hundred five million, four hundred thirteen thousand, four hundred two".