398449179 has 16 divisors (see below), whose sum is σ = 625019040. Its totient is φ = 250007040.

The previous prime is 398449159. The next prime is 398449211. The reversal of 398449179 is 971944893.

398449179 is a `hidden beast` number, since 3 + 9 + 84 + 491 + 79 = 666.

It is not a de Polignac number, because 398449179 - 2⁵ = 398449147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (398449109) 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, 433582 + ... + 434499.

It is an arithmetic number, because the mean of its divisors is an integer number (39063690).

Almost surely, 2^398449179 is an apocalyptic number.

398449179 is a deficient number, since it is larger than the sum of its proper divisors (226569861).

398449179 is a wasteful number, since it uses less digits than its factorization.

398449179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868107 (or 868101 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 398449179 is about 19961.1918231352. The cubic root of 398449179 is about 735.8528542429.

The spelling of 398449179 in words is "three hundred ninety-eight million, four hundred forty-nine thousand, one hundred seventy-nine".