44072240 has 20 divisors (see below), whose sum is σ = 102468144. Its totient is φ = 17628864.

The previous prime is 44072239. The next prime is 44072251. The reversal of 44072240 is 4227044.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 275372 + ... + 275531.

Almost surely, 2^44072240 is an apocalyptic number.

44072240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44072240 is an abundant number, since it is smaller than the sum of its proper divisors (58395904).

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

44072240 is a wasteful number, since it uses less digits than its factorization.

44072240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550916 (or 550910 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 44072240 is about 6638.6926423807. The cubic root of 44072240 is about 353.2279342286.

Adding to 44072240 its reverse (4227044), we get a palindrome (48299284).

The spelling of 44072240 in words is "forty-four million, seventy-two thousand, two hundred forty".