244121163428 has 12 divisors (see below), whose sum is σ = 427281964620. Its totient is φ = 122040602112.

The previous prime is 244121163427. The next prime is 244121163439. The reversal of 244121163428 is 824361121442.

It can be written as a sum of positive squares in 2 ways, for example, as 138189140644 + 105932022784 = 371738^2 + 325472^2 .

It is a super-2 number, since 2×244121163428² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 244121163391 and 244121163400.

It is not an unprimeable number, because it can be changed into a prime (244121163427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4967393 + ... + 5016296.

It is an arithmetic number, because the mean of its divisors is an integer number (35606830385).

Almost surely, 2^244121163428 is an apocalyptic number.

It is an amenable number.

244121163428 is a deficient number, since it is larger than the sum of its proper divisors (183160801192).

244121163428 is a wasteful number, since it uses less digits than its factorization.

244121163428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9989806 (or 9989804 counting only the distinct ones).

The product of its digits is 73728, while the sum is 38.

The spelling of 244121163428 in words is "two hundred forty-four billion, one hundred twenty-one million, one hundred sixty-three thousand, four hundred twenty-eight".