398349632 has 14 divisors (see below), whose sum is σ = 790475178. Its totient is φ = 199174784.

The previous prime is 398349617. The next prime is 398349641. The reversal of 398349632 is 236943893.

It can be written as a sum of positive squares in only one way, i.e., 216207616 + 182142016 = 14704^2 + 13496^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3112043 + ... + 3112170.

Almost surely, 2^398349632 is an apocalyptic number.

398349632 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

398349632 is a deficient number, since it is larger than the sum of its proper divisors (392125546).

398349632 is an equidigital number, since it uses as much as digits as its factorization.

398349632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6224225 (or 6224215 counting only the distinct ones).

The product of its digits is 839808, while the sum is 47.

The square root of 398349632 is about 19958.6981539378. The cubic root of 398349632 is about 735.7915682629.

The spelling of 398349632 in words is "three hundred ninety-eight million, three hundred forty-nine thousand, six hundred thirty-two".