398639324 has 24 divisors (see below), whose sum is σ = 745981488. Its totient is φ = 185734400.

The previous prime is 398639321. The next prime is 398639327. The reversal of 398639324 is 423936893.

It is an interprime number because it is at equal distance from previous prime (398639321) and next prime (398639327).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398639321) 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, 22154 + ... + 35889.

It is an arithmetic number, because the mean of its divisors is an integer number (31082562).

Almost surely, 2^398639324 is an apocalyptic number.

398639324 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

398639324 is a deficient number, since it is larger than the sum of its proper divisors (347342164).

398639324 is a wasteful number, since it uses less digits than its factorization.

398639324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58165 (or 58163 counting only the distinct ones).

The product of its digits is 839808, while the sum is 47.

The square root of 398639324 is about 19965.9541219547. The cubic root of 398639324 is about 735.9698883987.

The spelling of 398639324 in words is "three hundred ninety-eight million, six hundred thirty-nine thousand, three hundred twenty-four".