398045532 has 24 divisors (see below), whose sum is σ = 960800400. Its totient is φ = 128106496.

The previous prime is 398045477. The next prime is 398045569. The reversal of 398045532 is 235540893.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571557 + ... + 572252.

It is an arithmetic number, because the mean of its divisors is an integer number (40033350).

Almost surely, 2^398045532 is an apocalyptic number.

It is an amenable number.

398045532 is an abundant number, since it is smaller than the sum of its proper divisors (562754868).

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

398045532 is a wasteful number, since it uses less digits than its factorization.

398045532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143845 (or 1143843 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 398045532 is about 19951.0784670904. The cubic root of 398045532 is about 735.6042862372.

The spelling of 398045532 in words is "three hundred ninety-eight million, forty-five thousand, five hundred thirty-two".