244021156 has 6 divisors (see below), whose sum is σ = 427037030. Its totient is φ = 122010576.

The previous prime is 244021139. The next prime is 244021159. The reversal of 244021156 is 651120442.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 189998656 + 54022500 = 13784^2 + 7350^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 244021156.

It is not an unprimeable number, because it can be changed into a prime (244021159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30502641 + ... + 30502648.

Almost surely, 2^244021156 is an apocalyptic number.

It is an amenable number.

244021156 is a deficient number, since it is larger than the sum of its proper divisors (183015874).

244021156 is a wasteful number, since it uses less digits than its factorization.

244021156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61005293 (or 61005291 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 244021156 is about 15621.1765241930. The cubic root of 244021156 is about 624.8980364864.

Adding to 244021156 its reverse (651120442), we get a palindrome (895141598).

The spelling of 244021156 in words is "two hundred forty-four million, twenty-one thousand, one hundred fifty-six".