398115442 has 8 divisors (see below), whose sum is σ = 597312000. Its totient is φ = 199011444.

The previous prime is 398115439. The next prime is 398115479. The reversal of 398115442 is 244511893.

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, 11142 + ... + 30337.

It is an arithmetic number, because the mean of its divisors is an integer number (74664000).

Almost surely, 2^398115442 is an apocalyptic number.

398115442 is a deficient number, since it is larger than the sum of its proper divisors (199196558).

398115442 is a wasteful number, since it uses less digits than its factorization.

398115442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46280.

The product of its digits is 34560, while the sum is 37.

The square root of 398115442 is about 19952.8304257817. The cubic root of 398115442 is about 735.6473492213.

The spelling of 398115442 in words is "three hundred ninety-eight million, one hundred fifteen thousand, four hundred forty-two".