396169946 has 4 divisors (see below), whose sum is σ = 594254922. Its totient is φ = 198084972.

The previous prime is 396169937. The next prime is 396169951. The reversal of 396169946 is 649961693.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 356794321 + 39375625 = 18889^2 + 6275^2 .

It is a super-2 number, since 2×396169946² = 313901252227285832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99042485 + ... + 99042488.

Almost surely, 2^396169946 is an apocalyptic number.

396169946 is a deficient number, since it is larger than the sum of its proper divisors (198084976).

396169946 is a wasteful number, since it uses less digits than its factorization.

396169946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198084975.

The product of its digits is 1889568, while the sum is 53.

The square root of 396169946 is about 19904.0183380141. The cubic root of 396169946 is about 734.4470804179.

The spelling of 396169946 in words is "three hundred ninety-six million, one hundred sixty-nine thousand, nine hundred forty-six".