244155342540 has 48 divisors (see below), whose sum is σ = 688223138400. Its totient is φ = 64671121920.

The previous prime is 244155342523. The next prime is 244155342551. The reversal of 244155342540 is 45243551442.

It is a super-2 number, since 2×244155342540² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13646281 + ... + 13664160.

It is an arithmetic number, because the mean of its divisors is an integer number (14337982050).

Almost surely, 2^244155342540 is an apocalyptic number.

244155342540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244155342540 is an abundant number, since it is smaller than the sum of its proper divisors (444067795860).

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

244155342540 is a wasteful number, since it uses less digits than its factorization.

244155342540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27310602 (or 27310600 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 244155342540 its reverse (45243551442), we get a palindrome (289398893982).

The spelling of 244155342540 in words is "two hundred forty-four billion, one hundred fifty-five million, three hundred forty-two thousand, five hundred forty".