398637162 has 96 divisors (see below), whose sum is σ = 1086194304. Its totient is φ = 103498560.

The previous prime is 398637101. The next prime is 398637163. The reversal of 398637162 is 261736893.

398637162 is a `hidden beast` number, since 3 + 9 + 8 + 637 + 1 + 6 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (398637163) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166518 + ... + 168894.

It is an arithmetic number, because the mean of its divisors is an integer number (11314524).

Almost surely, 2^398637162 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398637162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543097152).

398637162 is an abundant number, since it is smaller than the sum of its proper divisors (687557142).

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

398637162 is a wasteful number, since it uses less digits than its factorization.

398637162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425 (or 2400 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 398637162 is about 19965.8999797154. The cubic root of 398637162 is about 735.9685578979.

The spelling of 398637162 in words is "three hundred ninety-eight million, six hundred thirty-seven thousand, one hundred sixty-two".