398829792 has 48 divisors (see below), whose sum is σ = 1108516752. Its totient is φ = 125122560.

The previous prime is 398829751. The next prime is 398829833. The reversal of 398829792 is 297928893.

It is an interprime number because it is at equal distance from previous prime (398829751) and next prime (398829833).

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120559 + ... + 123822.

It is an arithmetic number, because the mean of its divisors is an integer number (23094099).

Almost surely, 2^398829792 is an apocalyptic number.

398829792 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

398829792 is an abundant number, since it is smaller than the sum of its proper divisors (709686960).

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

398829792 is a wasteful number, since it uses less digits than its factorization.

398829792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244411 (or 244403 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 57.

The square root of 398829792 is about 19970.7233719763. The cubic root of 398829792 is about 736.0870840562.

The spelling of 398829792 in words is "three hundred ninety-eight million, eight hundred twenty-nine thousand, seven hundred ninety-two".