244919440 has 40 divisors (see below), whose sum is σ = 570162168. Its totient is φ = 97843200.

The previous prime is 244919429. The next prime is 244919447. The reversal of 244919440 is 44919442.

It can be written as a sum of positive squares in 4 ways, for example, as 91853056 + 153066384 = 9584^2 + 12372^2 .

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

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 244919440.

It is not an unprimeable number, because it can be changed into a prime (244919447) 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, 86040 + ... + 88840.

Almost surely, 2^244919440 is an apocalyptic number.

244919440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244919440 is an abundant number, since it is smaller than the sum of its proper divisors (325242728).

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

244919440 is a wasteful number, since it uses less digits than its factorization.

244919440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907 (or 3901 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 244919440 is about 15649.9022361164. The cubic root of 244919440 is about 625.6638833645.

The spelling of 244919440 in words is "two hundred forty-four million, nine hundred nineteen thousand, four hundred forty".