398808576 has 160 divisors (see below), whose sum is σ = 1250678880. Its totient is φ = 125042688.

The previous prime is 398808547. The next prime is 398808601. The reversal of 398808576 is 675808893.

It is a happy number.

It is a super-2 number, since 2×398808576² = 318096560582295552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234160 + ... + 235856.

It is an arithmetic number, because the mean of its divisors is an integer number (7816743).

Almost surely, 2^398808576 is an apocalyptic number.

398808576 is a gapful number since it is divisible by the number (36) 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 398808576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (625339440).

398808576 is an abundant number, since it is smaller than the sum of its proper divisors (851870304).

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

398808576 is a wasteful number, since it uses less digits than its factorization.

398808576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741 (or 1719 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 398808576 is about 19970.1921873576. The cubic root of 398808576 is about 736.0740316206.

The spelling of 398808576 in words is "three hundred ninety-eight million, eight hundred eight thousand, five hundred seventy-six".