400304436 has 24 divisors (see below), whose sum is σ = 1067478720. Its totient is φ = 114372672.

The previous prime is 400304419. The next prime is 400304447. The reversal of 400304436 is 634403004.

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, 2382681 + ... + 2382848.

It is an arithmetic number, because the mean of its divisors is an integer number (44478280).

Almost surely, 2^400304436 is an apocalyptic number.

It is an amenable number.

400304436 is an abundant number, since it is smaller than the sum of its proper divisors (667174284).

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

400304436 is a wasteful number, since it uses less digits than its factorization.

400304436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4765543 (or 4765541 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 400304436 is about 20007.6094524059. The cubic root of 400304436 is about 736.9931776280.

The spelling of 400304436 in words is "four hundred million, three hundred four thousand, four hundred thirty-six".