398522224 has 20 divisors (see below), whose sum is σ = 774164736. Its totient is φ = 198737792.

The previous prime is 398522209. The next prime is 398522239. The reversal of 398522224 is 422225893.

It is an interprime number because it is at equal distance from previous prime (398522209) and next prime (398522239).

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, 26389 + ... + 38644.

Almost surely, 2^398522224 is an apocalyptic number.

It is an amenable number.

398522224 is a deficient number, since it is larger than the sum of its proper divisors (375642512).

398522224 is a wasteful number, since it uses less digits than its factorization.

398522224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65424 (or 65418 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 398522224 is about 19963.0214146056. The cubic root of 398522224 is about 735.8978178086.

The spelling of 398522224 in words is "three hundred ninety-eight million, five hundred twenty-two thousand, two hundred twenty-four".