1979333650 has 48 divisors (see below), whose sum is σ = 4213016064. Its totient is φ = 677738880.

The previous prime is 1979333641. The next prime is 1979333689. The reversal of 1979333650 is 563339791.

It is a self number, because there is not a number n which added to its sum of digits gives 1979333650.

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 23 ways as a sum of consecutive naturals, for example, 298774 + ... + 305326.

It is an arithmetic number, because the mean of its divisors is an integer number (87771168).

Almost surely, 2^1979333650 is an apocalyptic number.

1979333650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1979333650 is an abundant number, since it is smaller than the sum of its proper divisors (2233682414).

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

1979333650 is a wasteful number, since it uses less digits than its factorization.

1979333650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7435 (or 7430 counting only the distinct ones).

The product of its (nonzero) digits is 459270, while the sum is 46.

The square root of 1979333650 is about 44489.7027411962. The cubic root of 1979333650 is about 1255.5663544318.

The spelling of 1979333650 in words is "one billion, nine hundred seventy-nine million, three hundred thirty-three thousand, six hundred fifty".