1144263604 has 36 divisors (see below), whose sum is σ = 2223835012. Its totient is φ = 514736640.

The previous prime is 1144263509. The next prime is 1144263607. The reversal of 1144263604 is 4063624411.

It can be written as a sum of positive squares in 2 ways, for example, as 436810000 + 707453604 = 20900^2 + 26598^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144263607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34762 + ... + 59134.

Almost surely, 2^1144263604 is an apocalyptic number.

It is an amenable number.

1144263604 is a deficient number, since it is larger than the sum of its proper divisors (1079571408).

1144263604 is a wasteful number, since it uses less digits than its factorization.

1144263604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24496 (or 24483 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 1144263604 is about 33826.9656339436. The cubic root of 1144263604 is about 1045.9446306058.

The spelling of 1144263604 in words is "one billion, one hundred forty-four million, two hundred sixty-three thousand, six hundred four".