398957474 has 8 divisors (see below), whose sum is σ = 604361628. Its totient is φ = 197503600.

The previous prime is 398957467. The next prime is 398957477. The reversal of 398957474 is 474759893.

It can be written as a sum of positive squares in 2 ways, for example, as 338008225 + 60949249 = 18385^2 + 7807^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (398957477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 987317 + ... + 987720.

Almost surely, 2^398957474 is an apocalyptic number.

398957474 is a deficient number, since it is larger than the sum of its proper divisors (205404154).

398957474 is a wasteful number, since it uses less digits than its factorization.

398957474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975140.

The product of its digits is 7620480, while the sum is 56.

The square root of 398957474 is about 19973.9198456387. The cubic root of 398957474 is about 736.1656263694.

The spelling of 398957474 in words is "three hundred ninety-eight million, nine hundred fifty-seven thousand, four hundred seventy-four".