44240240 has 40 divisors (see below), whose sum is σ = 112211568. Its totient is φ = 16087040.

The previous prime is 44240233. The next prime is 44240269. The reversal of 44240240 is 4204244.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 24257 + ... + 26016.

Almost surely, 2^44240240 is an apocalyptic number.

44240240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44240240 is an abundant number, since it is smaller than the sum of its proper divisors (67971328).

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

44240240 is a wasteful number, since it uses less digits than its factorization.

44240240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50297 (or 50291 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 44240240 is about 6651.3337008453. Note that the first 3 decimals coincide. The cubic root of 44240240 is about 353.6761910714.

Adding to 44240240 its reverse (4204244), we get a palindrome (48444484).

The spelling of 44240240 in words is "forty-four million, two hundred forty thousand, two hundred forty".