44424442 has 16 divisors (see below), whose sum is σ = 68073192. Its totient is φ = 21738240.

The previous prime is 44424437. The next prime is 44424449. The reversal of 44424442 is 24442444.

It can be written as a sum of positive squares in 4 ways, for example, as 42237001 + 2187441 = 6499^2 + 1479^2 .

It is a super-2 number, since 2×44424442² = 3947062094022728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 44424442.

It is not an unprimeable number, because it can be changed into a prime (44424449) 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, 18892 + ... + 21112.

Almost surely, 2^44424442 is an apocalyptic number.

44424442 is a deficient number, since it is larger than the sum of its proper divisors (23648750).

44424442 is a wasteful number, since it uses less digits than its factorization.

44424442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433.

The product of its digits is 16384, while the sum is 28.

The square root of 44424442 is about 6665.1663145041. The cubic root of 44424442 is about 354.1663756645.

Adding to 44424442 its reverse (24442444), we get a palindrome (68866886).

It can be divided in two parts, 4442444 and 2, that multiplied together give a palindrome (8884888).

The spelling of 44424442 in words is "forty-four million, four hundred twenty-four thousand, four hundred forty-two".