1162749644 has 24 divisors (see below), whose sum is σ = 2326990848. Its totient is φ = 498001680.

The previous prime is 1162749587. The next prime is 1162749647. The reversal of 1162749644 is 4469472611.

It is a junction number, because it is equal to n+sod(n) for n = 1162749595 and 1162749604.

It is not an unprimeable number, because it can be changed into a prime (1162749647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34079 + ... + 59049.

It is an arithmetic number, because the mean of its divisors is an integer number (96957952).

Almost surely, 2^1162749644 is an apocalyptic number.

1162749644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1162749644 is an abundant number, since it is smaller than the sum of its proper divisors (1164241204).

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

1162749644 is a wasteful number, since it uses less digits than its factorization.

1162749644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26645 (or 26643 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 1162749644 is about 34099.1150031786. The cubic root of 1162749644 is about 1051.5471203373.

The spelling of 1162749644 in words is "one billion, one hundred sixty-two million, seven hundred forty-nine thousand, six hundred forty-four".