336642405 has 32 divisors (see below), whose sum is σ = 591580800. Its totient is φ = 162113280.

The previous prime is 336642343. The next prime is 336642407. The reversal of 336642405 is 504246633.

It is not a de Polignac number, because 336642405 - 2⁸ = 336642149 is a prime.

It is a super-2 number, since 2×336642405² = 226656217688368050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (336642407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17739 + ... + 31431.

It is an arithmetic number, because the mean of its divisors is an integer number (18486900).

Almost surely, 2^336642405 is an apocalyptic number.

It is an amenable number.

336642405 is a deficient number, since it is larger than the sum of its proper divisors (254938395).

336642405 is a wasteful number, since it uses less digits than its factorization.

336642405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13861.

The product of its (nonzero) digits is 51840, while the sum is 33.

The square root of 336642405 is about 18347.8174451350. The cubic root of 336642405 is about 695.6481058206.

The spelling of 336642405 in words is "three hundred thirty-six million, six hundred forty-two thousand, four hundred five".