396131099 has 24 divisors (see below), whose sum is σ = 495136512. Its totient is φ = 310284000.

The previous prime is 396131089. The next prime is 396131107. The reversal of 396131099 is 990131693.

It is not a de Polignac number, because 396131099 - 2⁴ = 396131083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396131009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120224 + ... + 123474.

It is an arithmetic number, because the mean of its divisors is an integer number (20630688).

Almost surely, 2^396131099 is an apocalyptic number.

396131099 is a deficient number, since it is larger than the sum of its proper divisors (99005413).

396131099 is a wasteful number, since it uses less digits than its factorization.

396131099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387 (or 3374 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 41.

The square root of 396131099 is about 19903.0424558659. The cubic root of 396131099 is about 734.4230738869.

The spelling of 396131099 in words is "three hundred ninety-six million, one hundred thirty-one thousand, ninety-nine".