44424440 has 16 divisors (see below), whose sum is σ = 99955080. Its totient is φ = 17769760.

The previous prime is 44424437. The next prime is 44424449. The reversal of 44424440 is 4442444.

It is a happy number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 555266 + ... + 555345.

Almost surely, 2^44424440 is an apocalyptic number.

44424440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44424440 is an abundant number, since it is smaller than the sum of its proper divisors (55530640).

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

44424440 is a wasteful number, since it uses less digits than its factorization.

44424440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110622 (or 1110618 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 44424440 is about 6665.1661644703. The cubic root of 44424440 is about 354.1663703496.

Adding to 44424440 its reverse (4442444), we get a palindrome (48866884).

The spelling of 44424440 in words is "forty-four million, four hundred twenty-four thousand, four hundred forty".