398450652 has 24 divisors (see below), whose sum is σ = 931362432. Its totient is φ = 132582000.

The previous prime is 398450621. The next prime is 398450677. The reversal of 398450652 is 256054893.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22224 + ... + 35927.

It is an arithmetic number, because the mean of its divisors is an integer number (38806768).

Almost surely, 2^398450652 is an apocalyptic number.

It is an amenable number.

398450652 is an abundant number, since it is smaller than the sum of its proper divisors (532911780).

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

398450652 is a wasteful number, since it uses less digits than its factorization.

398450652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58729 (or 58727 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 398450652 is about 19961.2287196956. The cubic root of 398450652 is about 735.8537610168.

The spelling of 398450652 in words is "three hundred ninety-eight million, four hundred fifty thousand, six hundred fifty-two".