1244165492 has 6 divisors (see below), whose sum is σ = 2177289618. Its totient is φ = 622082744.

The previous prime is 1244165491. The next prime is 1244165521. The reversal of 1244165492 is 2945614421.

It can be written as a sum of positive squares in only one way, i.e., 1212850276 + 31315216 = 34826^2 + 5596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244165491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155520683 + ... + 155520690.

It is an arithmetic number, because the mean of its divisors is an integer number (362881603).

Almost surely, 2^1244165492 is an apocalyptic number.

It is an amenable number.

1244165492 is a deficient number, since it is larger than the sum of its proper divisors (933124126).

1244165492 is a wasteful number, since it uses less digits than its factorization.

1244165492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311041377 (or 311041375 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 1244165492 is about 35272.7301466728. The cubic root of 1244165492 is about 1075.5387217251.

The spelling of 1244165492 in words is "one billion, two hundred forty-four million, one hundred sixty-five thousand, four hundred ninety-two".