398118524 has 6 divisors (see below), whose sum is σ = 696707424. Its totient is φ = 199059260.

The previous prime is 398118509. The next prime is 398118541. The reversal of 398118524 is 425811893.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49764812 + ... + 49764819.

It is an arithmetic number, because the mean of its divisors is an integer number (116117904).

Almost surely, 2^398118524 is an apocalyptic number.

It is an amenable number.

398118524 is a deficient number, since it is larger than the sum of its proper divisors (298588900).

398118524 is a wasteful number, since it uses less digits than its factorization.

398118524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99529635 (or 99529633 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 398118524 is about 19952.9076577826. The cubic root of 398118524 is about 735.6492475478.

The spelling of 398118524 in words is "three hundred ninety-eight million, one hundred eighteen thousand, five hundred twenty-four".