398885124 has 48 divisors (see below), whose sum is σ = 1021628160. Its totient is φ = 120126240.

The previous prime is 398885117. The next prime is 398885129. The reversal of 398885124 is 421588893.

It is not an unprimeable number, because it can be changed into a prime (398885129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12247 + ... + 30785.

It is an arithmetic number, because the mean of its divisors is an integer number (21283920).

Almost surely, 2^398885124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398885124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510814080).

398885124 is an abundant number, since it is smaller than the sum of its proper divisors (622743036).

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

398885124 is a wasteful number, since it uses less digits than its factorization.

398885124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18720 (or 18718 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 398885124 is about 19972.1086518174. The cubic root of 398885124 is about 736.1211230439.

The spelling of 398885124 in words is "three hundred ninety-eight million, eight hundred eighty-five thousand, one hundred twenty-four".