1199890932 has 12 divisors (see below), whose sum is σ = 2799745536. Its totient is φ = 399963640.

The previous prime is 1199890931. The next prime is 1199890943. The reversal of 1199890932 is 2390989911.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1199890931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49995444 + ... + 49995467.

It is an arithmetic number, because the mean of its divisors is an integer number (233312128).

Almost surely, 2^1199890932 is an apocalyptic number.

1199890932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1199890932 is an abundant number, since it is smaller than the sum of its proper divisors (1599854604).

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

1199890932 is a wasteful number, since it uses less digits than its factorization.

1199890932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99990918 (or 99990916 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 51.

The square root of 1199890932 is about 34639.4418546258. The cubic root of 1199890932 is about 1062.6263731947.

The spelling of 1199890932 in words is "one billion, one hundred ninety-nine million, eight hundred ninety thousand, nine hundred thirty-two".