396976194 has 64 divisors (see below), whose sum is σ = 914042880. Its totient is φ = 127627920.

The previous prime is 396976189. The next prime is 396976207. The reversal of 396976194 is 491679693.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 396976194.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179097 + ... + 181299.

It is an arithmetic number, because the mean of its divisors is an integer number (14281920).

Almost surely, 2^396976194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396976194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457021440).

396976194 is an abundant number, since it is smaller than the sum of its proper divisors (517066686).

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

396976194 is a wasteful number, since it uses less digits than its factorization.

396976194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332 (or 2326 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 396976194 is about 19924.2614417699. The cubic root of 396976194 is about 734.9449688077.

The spelling of 396976194 in words is "three hundred ninety-six million, nine hundred seventy-six thousand, one hundred ninety-four".