400244334 has 16 divisors (see below), whose sum is σ = 914844288. Its totient is φ = 114355512.

The previous prime is 400244333. The next prime is 400244389. The reversal of 400244334 is 433442004.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400244333) 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, 4764772 + ... + 4764855.

It is an arithmetic number, because the mean of its divisors is an integer number (57177768).

Almost surely, 2^400244334 is an apocalyptic number.

400244334 is an abundant number, since it is smaller than the sum of its proper divisors (514599954).

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

400244334 is a wasteful number, since it uses less digits than its factorization.

400244334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9529639.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 400244334 is about 20006.1074174863. The cubic root of 400244334 is about 736.9562915508.

Adding to 400244334 its reverse (433442004), we get a palindrome (833686338).

The spelling of 400244334 in words is "four hundred million, two hundred forty-four thousand, three hundred thirty-four".