400352244 has 96 divisors (see below), whose sum is σ = 1015483392. Its totient is φ = 122304000.

The previous prime is 400352203. The next prime is 400352263. The reversal of 400352244 is 442253004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1897299 + ... + 1897509.

It is an arithmetic number, because the mean of its divisors is an integer number (10577952).

Almost surely, 2^400352244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400352244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507741696).

400352244 is an abundant number, since it is smaller than the sum of its proper divisors (615131148).

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

400352244 is a wasteful number, since it uses less digits than its factorization.

400352244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 400352244 is about 20008.8041621682. The cubic root of 400352244 is about 737.0225159383.

The spelling of 400352244 in words is "four hundred million, three hundred fifty-two thousand, two hundred forty-four".