1199953650 has 72 divisors (see below), whose sum is σ = 3461765040. Its totient is φ = 274273440.

The previous prime is 1199953649. The next prime is 1199953661. The reversal of 1199953650 is 563599911.

It is a self number, because there is not a number n which added to its sum of digits gives 1199953650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 74280 + ... + 88979.

It is an arithmetic number, because the mean of its divisors is an integer number (48080070).

Almost surely, 2^1199953650 is an apocalyptic number.

1199953650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1199953650 is an abundant number, since it is smaller than the sum of its proper divisors (2261811390).

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

1199953650 is a wasteful number, since it uses less digits than its factorization.

1199953650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163288 (or 163276 counting only the distinct ones).

The product of its (nonzero) digits is 328050, while the sum is 48.

The square root of 1199953650 is about 34640.3471402929. The cubic root of 1199953650 is about 1062.6448872774.

The spelling of 1199953650 in words is "one billion, one hundred ninety-nine million, nine hundred fifty-three thousand, six hundred fifty".