1144764064 has 24 divisors (see below), whose sum is σ = 2290704948. Its totient is φ = 562997760.

The previous prime is 1144764059. The next prime is 1144764083. The reversal of 1144764064 is 4604674411.

It can be written as a sum of positive squares in 2 ways, for example, as 680792464 + 463971600 = 26092^2 + 21540^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291277 + ... + 295180.

Almost surely, 2^1144764064 is an apocalyptic number.

It is an amenable number.

1144764064 is an abundant number, since it is smaller than the sum of its proper divisors (1145940884).

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

1144764064 is an equidigital number, since it uses as much as digits as its factorization.

1144764064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586528 (or 586520 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 1144764064 is about 33834.3621781171. The cubic root of 1144764064 is about 1046.0970946457.

The spelling of 1144764064 in words is "one billion, one hundred forty-four million, seven hundred sixty-four thousand, sixty-four".