1159826994 has 48 divisors (see below), whose sum is σ = 2730574080. Its totient is φ = 354443040.

The previous prime is 1159826959. The next prime is 1159826999. The reversal of 1159826994 is 4996289511.

It is a super-2 number, since 2×1159826994² = 2690397312022152072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1159826994.

It is not an unprimeable number, because it can be changed into a prime (1159826999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44097 + ... + 65300.

It is an arithmetic number, because the mean of its divisors is an integer number (56886960).

Almost surely, 2^1159826994 is an apocalyptic number.

1159826994 is an abundant number, since it is smaller than the sum of its proper divisors (1570747086).

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

1159826994 is a wasteful number, since it uses less digits than its factorization.

1159826994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109455 (or 109452 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 54.

The square root of 1159826994 is about 34056.2328216143. The cubic root of 1159826994 is about 1050.6653361415.

The spelling of 1159826994 in words is "one billion, one hundred fifty-nine million, eight hundred twenty-six thousand, nine hundred ninety-four".