1244901172 has 12 divisors (see below), whose sum is σ = 2178966916. Its totient is φ = 622339200.

The previous prime is 1244901169. The next prime is 1244901179. The reversal of 1244901172 is 2711094421.

It can be written as a sum of positive squares in 2 ways, for example, as 903242916 + 341658256 = 30054^2 + 18484^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244901179) 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, 508 + ... + 49900.

Almost surely, 2^1244901172 is an apocalyptic number.

It is an amenable number.

1244901172 is a deficient number, since it is larger than the sum of its proper divisors (934065744).

1244901172 is a wasteful number, since it uses less digits than its factorization.

1244901172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55698 (or 55696 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1244901172 is about 35283.1570582906. The cubic root of 1244901172 is about 1075.7506700621.

Adding to 1244901172 its reverse (2711094421), we get a palindrome (3955995593).

The spelling of 1244901172 in words is "one billion, two hundred forty-four million, nine hundred one thousand, one hundred seventy-two".