244122540 has 48 divisors (see below), whose sum is σ = 693756672. Its totient is φ = 64126656.

The previous prime is 244122539. The next prime is 244122547. The reversal of 244122540 is 45221442.

It is a happy number.

It is a super-4 number, since 4×244122540⁴ (a number of 35 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 244122540.

It is not an unprimeable number, because it can be changed into a prime (244122547) by changing a digit.

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, 26344 + ... + 34383.

It is an arithmetic number, because the mean of its divisors is an integer number (14453264).

Almost surely, 2^244122540 is an apocalyptic number.

244122540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244122540 is an abundant number, since it is smaller than the sum of its proper divisors (449634132).

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

244122540 is a wasteful number, since it uses less digits than its factorization.

244122540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60806 (or 60804 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 244122540 is about 15624.4212692823. The cubic root of 244122540 is about 624.9845670856.

Adding to 244122540 its reverse (45221442), we get a palindrome (289343982).

The spelling of 244122540 in words is "two hundred forty-four million, one hundred twenty-two thousand, five hundred forty".