396009660 has 24 divisors (see below), whose sum is σ = 1108827216. Its totient is φ = 105602560.

The previous prime is 396009643. The next prime is 396009689. The reversal of 396009660 is 66900693.

It is a congruent number.

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, 3300021 + ... + 3300140.

It is an arithmetic number, because the mean of its divisors is an integer number (46201134).

Almost surely, 2^396009660 is an apocalyptic number.

396009660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

396009660 is an abundant number, since it is smaller than the sum of its proper divisors (712817556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396009660 is a wasteful number, since it uses less digits than its factorization.

396009660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6600173 (or 6600171 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 396009660 is about 19899.9914572846. The cubic root of 396009660 is about 734.3480173216.

The spelling of 396009660 in words is "three hundred ninety-six million, nine thousand, six hundred sixty".