396966880 has 24 divisors (see below), whose sum is σ = 937834632. Its totient is φ = 158786688.

The previous prime is 396966859. The next prime is 396966887. The reversal of 396966880 is 88669693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396966887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240362 + ... + 1240681.

It is an arithmetic number, because the mean of its divisors is an integer number (39076443).

Almost surely, 2^396966880 is an apocalyptic number.

It is an amenable number.

396966880 is an abundant number, since it is smaller than the sum of its proper divisors (540867752).

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

396966880 is a wasteful number, since it uses less digits than its factorization.

396966880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481058 (or 2481050 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 55.

The square root of 396966880 is about 19924.0277052608. The cubic root of 396966880 is about 734.9392209140.

The spelling of 396966880 in words is "three hundred ninety-six million, nine hundred sixty-six thousand, eight hundred eighty".