396440084 has 12 divisors (see below), whose sum is σ = 693942144. Its totient is φ = 198170904.

The previous prime is 396440041. The next prime is 396440113. The reversal of 396440084 is 480044693.

It is a congruent number.

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, 10607 + ... + 30089.

It is an arithmetic number, because the mean of its divisors is an integer number (57828512).

Almost surely, 2^396440084 is an apocalyptic number.

It is an amenable number.

396440084 is a deficient number, since it is larger than the sum of its proper divisors (297502060).

396440084 is a wasteful number, since it uses less digits than its factorization.

396440084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24574 (or 24572 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 396440084 is about 19910.8031982640. The cubic root of 396440084 is about 734.6139759547.

The spelling of 396440084 in words is "three hundred ninety-six million, four hundred forty thousand, eighty-four".