398599454 has 8 divisors (see below), whose sum is σ = 652253688. Its totient is φ = 181181560.

The previous prime is 398599451. The next prime is 398599471. The reversal of 398599454 is 454995893.

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

It is a self number, because there is not a number n which added to its sum of digits gives 398599454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398599451) 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, 9059057 + ... + 9059100.

It is an arithmetic number, because the mean of its divisors is an integer number (81531711).

Almost surely, 2^398599454 is an apocalyptic number.

398599454 is a deficient number, since it is larger than the sum of its proper divisors (253654234).

398599454 is a wasteful number, since it uses less digits than its factorization.

398599454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18118170.

The product of its digits is 6998400, while the sum is 56.

The square root of 398599454 is about 19964.9556473337. The cubic root of 398599454 is about 735.9453515170.

The spelling of 398599454 in words is "three hundred ninety-eight million, five hundred ninety-nine thousand, four hundred fifty-four".