398241936 has 45 divisors (see below), whose sum is σ = 1115194899. Its totient is φ = 132667488.

The previous prime is 398241929. The next prime is 398241953. The reversal of 398241936 is 639142893.

It is a happy number.

The square root of 398241936 is 19956.

It is a perfect power (a square), and thus also a powerful number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 398241891 and 398241900.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 238641 + ... + 240303.

Almost surely, 2^398241936 is an apocalyptic number.

398241936 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

398241936 is the 19956-th square number.

It is an amenable number.

398241936 is an abundant number, since it is smaller than the sum of its proper divisors (716952963).

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

398241936 is an equidigital number, since it uses as much as digits as its factorization.

398241936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340 (or 1668 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The cubic root of 398241936 is about 735.7252538625.

The spelling of 398241936 in words is "three hundred ninety-eight million, two hundred forty-one thousand, nine hundred thirty-six".