244240001440 has 48 divisors (see below), whose sum is σ = 592612071912. Its totient is φ = 95055565824.

The previous prime is 244240001437. The next prime is 244240001449. The reversal of 244240001440 is 44100042442.

It can be written as a sum of positive squares in 4 ways, for example, as 242256902416 + 1983099024 = 492196^2 + 44532^2 .

It is a super-2 number, since 2×244240001440² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (244240001449) 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, 20622459 + ... + 20634298.

Almost surely, 2^244240001440 is an apocalyptic number.

244240001440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244240001440 is an abundant number, since it is smaller than the sum of its proper divisors (348372070472).

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

244240001440 is a wasteful number, since it uses less digits than its factorization.

244240001440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41256809 (or 41256801 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 244240001440 its reverse (44100042442), we get a palindrome (288340043882).

The spelling of 244240001440 in words is "two hundred forty-four billion, two hundred forty million, one thousand, four hundred forty".