398078608 has 40 divisors (see below), whose sum is σ = 781244640. Its totient is φ = 196485120.

The previous prime is 398078587. The next prime is 398078617. The reversal of 398078608 is 806870893.

It is a happy 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, 538303 + ... + 539041.

It is an arithmetic number, because the mean of its divisors is an integer number (19531116).

Almost surely, 2^398078608 is an apocalyptic number.

It is an amenable number.

398078608 is a deficient number, since it is larger than the sum of its proper divisors (383166032).

398078608 is a wasteful number, since it uses less digits than its factorization.

398078608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 398078608 is about 19951.9073774915. The cubic root of 398078608 is about 735.6246609360.

The spelling of 398078608 in words is "three hundred ninety-eight million, seventy-eight thousand, six hundred eight".