396919490 has 32 divisors (see below), whose sum is σ = 781099200. Its totient is φ = 144020800.

The previous prime is 396919459. The next prime is 396919493. The reversal of 396919490 is 94919693.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (396919493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50336 + ... + 57684.

It is an arithmetic number, because the mean of its divisors is an integer number (24409350).

Almost surely, 2^396919490 is an apocalyptic number.

396919490 is a deficient number, since it is larger than the sum of its proper divisors (384179710).

396919490 is a wasteful number, since it uses less digits than its factorization.

396919490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7858.

The product of its (nonzero) digits is 472392, while the sum is 50.

The square root of 396919490 is about 19922.8384021956. The cubic root of 396919490 is about 734.9099740108.

The spelling of 396919490 in words is "three hundred ninety-six million, nine hundred nineteen thousand, four hundred ninety".