244121541240 has 64 divisors (see below), whose sum is σ = 739914809760. Its totient is φ = 64427950080.

The previous prime is 244121541233. The next prime is 244121541331. The reversal of 244121541240 is 42145121442.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 244121541198 and 244121541207.

It is a congruent number.

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, 10474681 + ... + 10497960.

Almost surely, 2^244121541240 is an apocalyptic number.

244121541240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244121541240 is an abundant number, since it is smaller than the sum of its proper divisors (495793268520).

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

244121541240 is a wasteful number, since it uses less digits than its factorization.

244121541240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20972752 (or 20972748 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 244121541240 its reverse (42145121442), we get a palindrome (286266662682).

The spelling of 244121541240 in words is "two hundred forty-four billion, one hundred twenty-one million, five hundred forty-one thousand, two hundred forty".