398958434 has 8 divisors (see below), whose sum is σ = 683928768. Its totient is φ = 170982180.

The previous prime is 398958407. The next prime is 398958451. The reversal of 398958434 is 434859893.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14248502 + ... + 14248529.

It is an arithmetic number, because the mean of its divisors is an integer number (85491096).

Almost surely, 2^398958434 is an apocalyptic number.

398958434 is a deficient number, since it is larger than the sum of its proper divisors (284970334).

398958434 is a wasteful number, since it uses less digits than its factorization.

398958434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28497040.

The product of its digits is 3732480, while the sum is 53.

The square root of 398958434 is about 19973.9438769613. The cubic root of 398958434 is about 736.1662168404.

The spelling of 398958434 in words is "three hundred ninety-eight million, nine hundred fifty-eight thousand, four hundred thirty-four".