44242240 has 56 divisors (see below), whose sum is σ = 120408192. Its totient is φ = 15168000.

The previous prime is 44242223. The next prime is 44242243. The reversal of 44242240 is 4224244.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44242243) 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, 7636 + ... + 12115.

Almost surely, 2^44242240 is an apocalyptic number.

44242240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44242240 is an abundant number, since it is smaller than the sum of its proper divisors (76165952).

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

44242240 is a wasteful number, since it uses less digits than its factorization.

44242240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19775 (or 19765 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 44242240 is about 6651.4840449331. The cubic root of 44242240 is about 353.6815206214.

Adding to 44242240 its reverse (4224244), we get a palindrome (48466484).

The spelling of 44242240 in words is "forty-four million, two hundred forty-two thousand, two hundred forty".