398135094 has 48 divisors (see below), whose sum is σ = 933654528. Its totient is φ = 112846608.

The previous prime is 398135081. The next prime is 398135149. The reversal of 398135094 is 490531893.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32007 + ... + 42669.

It is an arithmetic number, because the mean of its divisors is an integer number (19451136).

Almost surely, 2^398135094 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398135094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466827264).

398135094 is an abundant number, since it is smaller than the sum of its proper divisors (535519434).

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

398135094 is a wasteful number, since it uses less digits than its factorization.

398135094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10809 (or 10802 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 398135094 is about 19953.3228811644. The cubic root of 398135094 is about 735.6594535025.

The spelling of 398135094 in words is "three hundred ninety-eight million, one hundred thirty-five thousand, ninety-four".