405645002 has 16 divisors (see below), whose sum is σ = 695665152. Its totient is φ = 173779440.

The previous prime is 405644989. The next prime is 405645017. The reversal of 405645002 is 200546504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49703 + ... + 57285.

It is an arithmetic number, because the mean of its divisors is an integer number (43479072).

Almost surely, 2^405645002 is an apocalyptic number.

405645002 is a deficient number, since it is larger than the sum of its proper divisors (290020150).

405645002 is a wasteful number, since it uses less digits than its factorization.

405645002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11413.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 405645002 is about 20140.6306256780. The cubic root of 405645002 is about 740.2561823022.

The spelling of 405645002 in words is "four hundred five million, six hundred forty-five thousand, two".