431404444 has 24 divisors (see below), whose sum is σ = 812479248. Its totient is φ = 199683840.

The previous prime is 431404409. The next prime is 431404469. The reversal of 431404444 is 444404134.

It is a super-2 number, since 2×431404444² = 372219588605898272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47854 + ... + 56149.

It is an arithmetic number, because the mean of its divisors is an integer number (33853302).

Almost surely, 2^431404444 is an apocalyptic number.

It is an amenable number.

431404444 is a deficient number, since it is larger than the sum of its proper divisors (381074804).

431404444 is a wasteful number, since it uses less digits than its factorization.

431404444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104085 (or 104083 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 431404444 is about 20770.2778989594. The cubic root of 431404444 is about 755.6050842804.

Adding to 431404444 its reverse (444404134), we get a palindrome (875808578).

The spelling of 431404444 in words is "four hundred thirty-one million, four hundred four thousand, four hundred forty-four".