396960550 has 48 divisors (see below), whose sum is σ = 857704032. Its totient is φ = 133862400.

The previous prime is 396960547. The next prime is 396960589. The reversal of 396960550 is 55069693.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 396960497 and 396960506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12054 + ... + 30646.

It is an arithmetic number, because the mean of its divisors is an integer number (17868834).

Almost surely, 2^396960550 is an apocalyptic number.

396960550 is an abundant number, since it is smaller than the sum of its proper divisors (460743482).

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

396960550 is a wasteful number, since it uses less digits than its factorization.

396960550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18673 (or 18668 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 43.

The square root of 396960550 is about 19923.8688512046. The cubic root of 396960550 is about 734.9353144672.

The spelling of 396960550 in words is "three hundred ninety-six million, nine hundred sixty thousand, five hundred fifty".