398005124 has 12 divisors (see below), whose sum is σ = 759828048. Its totient is φ = 180911400.

The previous prime is 398005123. The next prime is 398005129. The reversal of 398005124 is 421500893.

It is not an unprimeable number, because it can be changed into a prime (398005121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4522742 + ... + 4522829.

It is an arithmetic number, because the mean of its divisors is an integer number (63319004).

Almost surely, 2^398005124 is an apocalyptic number.

It is an amenable number.

398005124 is a deficient number, since it is larger than the sum of its proper divisors (361822924).

398005124 is a wasteful number, since it uses less digits than its factorization.

398005124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9045586 (or 9045584 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 398005124 is about 19950.0657643026. The cubic root of 398005124 is about 735.5793935206.

The spelling of 398005124 in words is "three hundred ninety-eight million, five thousand, one hundred twenty-four".