398393012 has 12 divisors (see below), whose sum is σ = 697707360. Its totient is φ = 199048056.

The previous prime is 398392963. The next prime is 398393053. The reversal of 398393012 is 210393893.

It is a super-3 number, since 3×398393012³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30962 + ... + 41897.

It is an arithmetic number, because the mean of its divisors is an integer number (58142280).

Almost surely, 2^398393012 is an apocalyptic number.

It is an amenable number.

398393012 is a deficient number, since it is larger than the sum of its proper divisors (299314348).

398393012 is a wasteful number, since it uses less digits than its factorization.

398393012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74230 (or 74228 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 398393012 is about 19959.7848685801. The cubic root of 398393012 is about 735.8182763581.

The spelling of 398393012 in words is "three hundred ninety-eight million, three hundred ninety-three thousand, twelve".