398042416 has 20 divisors (see below), whose sum is σ = 804738672. Its totient is φ = 190367936.

The previous prime is 398042383. The next prime is 398042417. The reversal of 398042416 is 614240893.

It is not an unprimeable number, because it can be changed into a prime (398042417) 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, 540451 + ... + 541186.

Almost surely, 2^398042416 is an apocalyptic number.

It is an amenable number.

398042416 is an abundant number, since it is smaller than the sum of its proper divisors (406696256).

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

398042416 is a wasteful number, since it uses less digits than its factorization.

398042416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081668 (or 1081662 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 398042416 is about 19951.0003759210. Note that the first 3 decimals coincide. The cubic root of 398042416 is about 735.6023667340.

The spelling of 398042416 in words is "three hundred ninety-eight million, forty-two thousand, four hundred sixteen".