2244037440 has 56 divisors (see below), whose sum is σ = 7124821920. Its totient is φ = 598409728.

The previous prime is 2244037409. The next prime is 2244037489. The reversal of 2244037440 is 447304422.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2244037398 and 2244037407.

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, 1167810 + ... + 1169729.

Almost surely, 2^2244037440 is an apocalyptic number.

2244037440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2244037440 is an abundant number, since it is smaller than the sum of its proper divisors (4880784480).

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

2244037440 is a wasteful number, since it uses less digits than its factorization.

2244037440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337559 (or 2337549 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 30.

The square root of 2244037440 is about 47371.2723071695. The cubic root of 2244037440 is about 1309.2121673592.

The spelling of 2244037440 in words is "two billion, two hundred forty-four million, thirty-seven thousand, four hundred forty".