398456954 has 16 divisors (see below), whose sum is σ = 685231488. Its totient is φ = 170226672.

The previous prime is 398456953. The next prime is 398456987. The reversal of 398456954 is 459654893.

It is a junction number, because it is equal to n+sod(n) for n = 398456896 and 398456905.

It is not an unprimeable number, because it can be changed into a prime (398456951) 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, 40454 + ... + 49329.

It is an arithmetic number, because the mean of its divisors is an integer number (42826968).

Almost surely, 2^398456954 is an apocalyptic number.

398456954 is a deficient number, since it is larger than the sum of its proper divisors (286774534).

398456954 is a wasteful number, since it uses less digits than its factorization.

398456954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90109.

The product of its digits is 4665600, while the sum is 53.

The square root of 398456954 is about 19961.3865750854. The cubic root of 398456954 is about 735.8576404817.

The spelling of 398456954 in words is "three hundred ninety-eight million, four hundred fifty-six thousand, nine hundred fifty-four".