398826078452 has 24 divisors (see below), whose sum is σ = 742714862400. Its totient is φ = 186739724160.

The previous prime is 398826078433. The next prime is 398826078487. The reversal of 398826078452 is 254870628893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14722874 + ... + 14749937.

It is an arithmetic number, because the mean of its divisors is an integer number (30946452600).

Almost surely, 2^398826078452 is an apocalyptic number.

It is an amenable number.

398826078452 is a deficient number, since it is larger than the sum of its proper divisors (343888783948).

398826078452 is a wasteful number, since it uses less digits than its factorization.

398826078452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29473031 (or 29473029 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 62.

The spelling of 398826078452 in words is "three hundred ninety-eight billion, eight hundred twenty-six million, seventy-eight thousand, four hundred fifty-two".