1161830740 has 48 divisors (see below), whose sum is σ = 2909636352. Its totient is φ = 381021696.

The previous prime is 1161830737. The next prime is 1161830743. The reversal of 1161830740 is 470381611.

It is an interprime number because it is at equal distance from previous prime (1161830737) and next prime (1161830743).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161830743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177189 + ... + 183628.

It is an arithmetic number, because the mean of its divisors is an integer number (60617424).

Almost surely, 2^1161830740 is an apocalyptic number.

1161830740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161830740 is an abundant number, since it is smaller than the sum of its proper divisors (1747805612).

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

1161830740 is a wasteful number, since it uses less digits than its factorization.

1161830740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360856 (or 360854 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1161830740 is about 34085.6383246669. The cubic root of 1161830740 is about 1051.2700399084.

The spelling of 1161830740 in words is "one billion, one hundred sixty-one million, eight hundred thirty thousand, seven hundred forty".