398896274 has 8 divisors (see below), whose sum is σ = 683822208. Its totient is φ = 170955540.

The previous prime is 398896273. The next prime is 398896283. The reversal of 398896274 is 472698893.

It is a happy number.

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

It is a super-2 number, since 2×398896274² = 318236474822166152, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (398896273) 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, 14246282 + ... + 14246309.

It is an arithmetic number, because the mean of its divisors is an integer number (85477776).

Almost surely, 2^398896274 is an apocalyptic number.

398896274 is a deficient number, since it is larger than the sum of its proper divisors (284925934).

398896274 is a wasteful number, since it uses less digits than its factorization.

398896274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28492600.

The product of its digits is 5225472, while the sum is 56.

The square root of 398896274 is about 19972.3877891453. The cubic root of 398896274 is about 736.1279818891.

The spelling of 398896274 in words is "three hundred ninety-eight million, eight hundred ninety-six thousand, two hundred seventy-four".