398228454 has 32 divisors (see below), whose sum is σ = 953027040. Its totient is φ = 122531616.

The previous prime is 398228437. The next prime is 398228483. The reversal of 398228454 is 454822893.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282937 + ... + 284340.

It is an arithmetic number, because the mean of its divisors is an integer number (29782095).

Almost surely, 2^398228454 is an apocalyptic number.

398228454 is an abundant number, since it is smaller than the sum of its proper divisors (554798586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398228454 is a wasteful number, since it uses less digits than its factorization.

398228454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567301 (or 567295 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 398228454 is about 19955.6622039961. The cubic root of 398228454 is about 735.7169514054.

The spelling of 398228454 in words is "three hundred ninety-eight million, two hundred twenty-eight thousand, four hundred fifty-four".