398332194 has 16 divisors (see below), whose sum is σ = 857946432. Its totient is φ = 122563728.

The previous prime is 398332171. The next prime is 398332199. The reversal of 398332194 is 491233893.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (398332199) 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, 2553334 + ... + 2553489.

It is an arithmetic number, because the mean of its divisors is an integer number (53621652).

Almost surely, 2^398332194 is an apocalyptic number.

398332194 is an abundant number, since it is smaller than the sum of its proper divisors (459614238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398332194 is a wasteful number, since it uses less digits than its factorization.

398332194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106841.

The product of its digits is 139968, while the sum is 42.

The square root of 398332194 is about 19958.2612970168. The cubic root of 398332194 is about 735.7808315301.

The spelling of 398332194 in words is "three hundred ninety-eight million, three hundred thirty-two thousand, one hundred ninety-four".