400232444 has 12 divisors (see below), whose sum is σ = 723000768. Its totient is φ = 193660800.

The previous prime is 400232429. The next prime is 400232461. The reversal of 400232444 is 444232004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1613717 + ... + 1613964.

It is an arithmetic number, because the mean of its divisors is an integer number (60250064).

Almost surely, 2^400232444 is an apocalyptic number.

It is an amenable number.

400232444 is a deficient number, since it is larger than the sum of its proper divisors (322768324).

400232444 is a wasteful number, since it uses less digits than its factorization.

400232444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3227716 (or 3227714 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 400232444 is about 20005.8102560231. The cubic root of 400232444 is about 736.9489939276.

Adding to 400232444 its reverse (444232004), we get a palindrome (844464448).

The spelling of 400232444 in words is "four hundred million, two hundred thirty-two thousand, four hundred forty-four".