1196890540 has 24 divisors (see below), whose sum is σ = 2516996160. Its totient is φ = 478084608.

The previous prime is 1196890529. The next prime is 1196890543. The reversal of 1196890540 is 450986911.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1196890543) 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, 27237 + ... + 55996.

It is an arithmetic number, because the mean of its divisors is an integer number (104874840).

Almost surely, 2^1196890540 is an apocalyptic number.

1196890540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1196890540 is an abundant number, since it is smaller than the sum of its proper divisors (1320105620).

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

1196890540 is a wasteful number, since it uses less digits than its factorization.

1196890540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83961 (or 83959 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 1196890540 is about 34596.1058502254. The cubic root of 1196890540 is about 1061.7399157166.

The spelling of 1196890540 in words is "one billion, one hundred ninety-six million, eight hundred ninety thousand, five hundred forty".