398499038 has 16 divisors (see below), whose sum is σ = 684319104. Its totient is φ = 170490840.

The previous prime is 398499029. The next prime is 398499061. The reversal of 398499038 is 830994893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16028 + ... + 32463.

It is an arithmetic number, because the mean of its divisors is an integer number (42769944).

Almost surely, 2^398499038 is an apocalyptic number.

398499038 is a deficient number, since it is larger than the sum of its proper divisors (285820066).

398499038 is a wasteful number, since it uses less digits than its factorization.

398499038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49087.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 398499038 is about 19962.4406824416. The cubic root of 398499038 is about 735.8835460343.

The spelling of 398499038 in words is "three hundred ninety-eight million, four hundred ninety-nine thousand, thirty-eight".