1144272492 has 72 divisors (see below), whose sum is σ = 3321514560. Its totient is φ = 328497120.

The previous prime is 1144272463. The next prime is 1144272497. The reversal of 1144272492 is 2942724411.

It is a happy number.

1144272492 is a `hidden beast` number, since 1 + 144 + 27 + 2 + 492 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1144272497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68518 + ... + 83565.

Almost surely, 2^1144272492 is an apocalyptic number.

1144272492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1144272492 is an abundant number, since it is smaller than the sum of its proper divisors (2177242068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144272492 is a wasteful number, since it uses less digits than its factorization.

1144272492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152123 (or 152118 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 1144272492 is about 33827.0970081679. The cubic root of 1144272492 is about 1045.9473387032.

The spelling of 1144272492 in words is "one billion, one hundred forty-four million, two hundred seventy-two thousand, four hundred ninety-two".