400089846 has 16 divisors (see below), whose sum is σ = 861732144. Its totient is φ = 123104544.

The previous prime is 400089817. The next prime is 400089863. The reversal of 400089846 is 648980004.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2564601 + ... + 2564756.

It is an arithmetic number, because the mean of its divisors is an integer number (53858259).

Almost surely, 2^400089846 is an apocalyptic number.

400089846 is an abundant number, since it is smaller than the sum of its proper divisors (461642298).

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

400089846 is a wasteful number, since it uses less digits than its factorization.

400089846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5129375.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 400089846 is about 20002.2460238844. The cubic root of 400089846 is about 736.8614615139.

The spelling of 400089846 in words is "four hundred million, eighty-nine thousand, eight hundred forty-six".