42313444 has 12 divisors (see below), whose sum is σ = 75091968. Its totient is φ = 20858600.

The previous prime is 42313441. The next prime is 42313507. The reversal of 42313444 is 44431324.

It is a super-2 number, since 2×42313444² = 3580855086282272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42313441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74212 + ... + 74779.

It is an arithmetic number, because the mean of its divisors is an integer number (6257664).

Almost surely, 2^42313444 is an apocalyptic number.

It is an amenable number.

42313444 is a deficient number, since it is larger than the sum of its proper divisors (32778524).

42313444 is a wasteful number, since it uses less digits than its factorization.

42313444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149066 (or 149064 counting only the distinct ones).

The product of its digits is 4608, while the sum is 25.

The square root of 42313444 is about 6504.8784769587. The cubic root of 42313444 is about 348.4652363008.

Adding to 42313444 its reverse (44431324), we get a palindrome (86744768).

The spelling of 42313444 in words is "forty-two million, three hundred thirteen thousand, four hundred forty-four".