1161402636 has 48 divisors (see below), whose sum is σ = 2744501760. Its totient is φ = 382219200.

The previous prime is 1161402623. The next prime is 1161402637. The reversal of 1161402636 is 6362041611.

It is not an unprimeable number, because it can be changed into a prime (1161402637) 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 15 ways as a sum of consecutive naturals, for example, 506685 + ... + 508971.

It is an arithmetic number, because the mean of its divisors is an integer number (57177120).

Almost surely, 2^1161402636 is an apocalyptic number.

It is an amenable number.

1161402636 is an abundant number, since it is smaller than the sum of its proper divisors (1583099124).

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

1161402636 is a wasteful number, since it uses less digits than its factorization.

1161402636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814 (or 2812 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1161402636 is about 34079.3579164866. The cubic root of 1161402636 is about 1051.1409022803.

The spelling of 1161402636 in words is "one billion, one hundred sixty-one million, four hundred two thousand, six hundred thirty-six".