1144645650 has 36 divisors (see below), whose sum is σ = 3075282522. Its totient is φ = 305238720.

The previous prime is 1144645639. The next prime is 1144645657. The reversal of 1144645650 is 565464411.

1144645650 is a `hidden beast` number, since 1 + 1 + 4 + 4 + 645 + 6 + 5 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 621654489 + 522991161 = 24933^2 + 22869^2 .

It is not an unprimeable number, because it can be changed into a prime (1144645657) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1271379 + ... + 1272278.

Almost surely, 2^1144645650 is an apocalyptic number.

1144645650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1144645650 is an abundant number, since it is smaller than the sum of its proper divisors (1930636872).

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

1144645650 is a wasteful number, since it uses less digits than its factorization.

1144645650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543675 (or 2543667 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 1144645650 is about 33832.6122254845. The cubic root of 1144645650 is about 1046.0610240944.

The spelling of 1144645650 in words is "one billion, one hundred forty-four million, six hundred forty-five thousand, six hundred fifty".