244240440 has 64 divisors (see below), whose sum is σ = 771292800. Its totient is φ = 61702272.

The previous prime is 244240439. The next prime is 244240457. The reversal of 244240440 is 44042442.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 244240440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51282 + ... + 55841.

It is an arithmetic number, because the mean of its divisors is an integer number (12051450).

Almost surely, 2^244240440 is an apocalyptic number.

244240440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244240440 is an abundant number, since it is smaller than the sum of its proper divisors (527052360).

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

244240440 is a wasteful number, since it uses less digits than its factorization.

244240440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107156 (or 107152 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 244240440 is about 15628.1937535980. The cubic root of 244240440 is about 625.0851638615.

Adding to 244240440 its reverse (44042442), we get a palindrome (288282882).

The spelling of 244240440 in words is "two hundred forty-four million, two hundred forty thousand, four hundred forty".