1144664396 has 12 divisors (see below), whose sum is σ = 2003818152. Its totient is φ = 572144928.

The previous prime is 1144664393. The next prime is 1144664399. The reversal of 1144664396 is 6934664411.

It is an interprime number because it is at equal distance from previous prime (1144664393) and next prime (1144664399).

It is not an unprimeable number, because it can be changed into a prime (1144664393) 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, 32585 + ... + 57888.

It is an arithmetic number, because the mean of its divisors is an integer number (166984846).

Almost surely, 2^1144664396 is an apocalyptic number.

It is an amenable number.

1144664396 is a deficient number, since it is larger than the sum of its proper divisors (859153756).

1144664396 is a wasteful number, since it uses less digits than its factorization.

1144664396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93640 (or 93638 counting only the distinct ones).

The product of its digits is 373248, while the sum is 44.

The square root of 1144664396 is about 33832.8892647376. The cubic root of 1144664396 is about 1046.0667345524.

The spelling of 1144664396 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, three hundred ninety-six".