398118000 has 160 divisors (see below), whose sum is σ = 1467048960. Its totient is φ = 90988800.

The previous prime is 398117987. The next prime is 398118011. The reversal of 398118000 is 811893.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37261 + ... + 46739.

It is an arithmetic number, because the mean of its divisors is an integer number (9169056).

Almost surely, 2^398118000 is an apocalyptic number.

398118000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398118000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733524480).

398118000 is an abundant number, since it is smaller than the sum of its proper divisors (1068930960).

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

398118000 is a wasteful number, since it uses less digits than its factorization.

398118000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9512 (or 9496 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 398118000 is about 19952.8945268600. The cubic root of 398118000 is about 735.6489247960.

Adding to 398118000 its reverse (811893), we get a palindrome (398929893).

The spelling of 398118000 in words is "three hundred ninety-eight million, one hundred eighteen thousand".