398238622 has 16 divisors (see below), whose sum is σ = 623567232. Its totient is φ = 190559520.

The previous prime is 398238611. The next prime is 398238623. The reversal of 398238622 is 226832893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398238623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39598 + ... + 48625.

It is an arithmetic number, because the mean of its divisors is an integer number (38972952).

Almost surely, 2^398238622 is an apocalyptic number.

398238622 is a deficient number, since it is larger than the sum of its proper divisors (225328610).

398238622 is a wasteful number, since it uses less digits than its factorization.

398238622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88323.

The product of its digits is 248832, while the sum is 43.

The square root of 398238622 is about 19955.9169671554. The cubic root of 398238622 is about 735.7232130593.

The spelling of 398238622 in words is "three hundred ninety-eight million, two hundred thirty-eight thousand, six hundred twenty-two".