244023625540 has 12 divisors (see below), whose sum is σ = 512449613676. Its totient is φ = 97609450208.

The previous prime is 244023625519. The next prime is 244023625553. The reversal of 244023625540 is 45526320442.

It can be written as a sum of positive squares in 2 ways, for example, as 62459006724 + 181564618816 = 249918^2 + 426104^2 .

It is a super-2 number, since 2×244023625540² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 244023625540.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6100590619 + ... + 6100590658.

It is an arithmetic number, because the mean of its divisors is an integer number (42704134473).

Almost surely, 2^244023625540 is an apocalyptic number.

244023625540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244023625540 is an abundant number, since it is smaller than the sum of its proper divisors (268425988136).

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

244023625540 is a wasteful number, since it uses less digits than its factorization.

244023625540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12201181286 (or 12201181284 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 244023625540 its reverse (45526320442), we get a palindrome (289549945982).

The spelling of 244023625540 in words is "two hundred forty-four billion, twenty-three million, six hundred twenty-five thousand, five hundred forty".