44425440 has 72 divisors (see below), whose sum is σ = 151606728. Its totient is φ = 11846400.

The previous prime is 44425429. The next prime is 44425441. The reversal of 44425440 is 4452444.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44425441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13986 + ... + 16865.

It is an arithmetic number, because the mean of its divisors is an integer number (2105649).

Almost surely, 2^44425440 is an apocalyptic number.

44425440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44425440 is an abundant number, since it is smaller than the sum of its proper divisors (107181288).

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

44425440 is a wasteful number, since it uses less digits than its factorization.

44425440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30872 (or 30861 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 44425440 is about 6665.2411809326. The cubic root of 44425440 is about 354.1690277736.

Adding to 44425440 its reverse (4452444), we get a palindrome (48877884).

The spelling of 44425440 in words is "forty-four million, four hundred twenty-five thousand, four hundred forty".