396279994 has 16 divisors (see below), whose sum is σ = 650238336. Its totient is φ = 179632800.

The previous prime is 396279991. The next prime is 396280019. The reversal of 396279994 is 499972693.

It is not an unprimeable number, because it can be changed into a prime (396279991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16467 + ... + 32614.

It is an arithmetic number, because the mean of its divisors is an integer number (40639896).

Almost surely, 2^396279994 is an apocalyptic number.

396279994 is a deficient number, since it is larger than the sum of its proper divisors (253958342).

396279994 is a wasteful number, since it uses less digits than its factorization.

396279994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49461.

The product of its digits is 6613488, while the sum is 58.

The square root of 396279994 is about 19906.7826129689. The cubic root of 396279994 is about 734.5150789713.

The spelling of 396279994 in words is "three hundred ninety-six million, two hundred seventy-nine thousand, nine hundred ninety-four".