1194645980 has 48 divisors (see below), whose sum is σ = 2740300416. Its totient is φ = 433865280.

The previous prime is 1194645943. The next prime is 1194646001. The reversal of 1194645980 is 895464911.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 196547 + ... + 202533.

It is an arithmetic number, because the mean of its divisors is an integer number (57089592).

Almost surely, 2^1194645980 is an apocalyptic number.

1194645980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1194645980 is an abundant number, since it is smaller than the sum of its proper divisors (1545654436).

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

1194645980 is a wasteful number, since it uses less digits than its factorization.

1194645980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6914 (or 6912 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 1194645980 is about 34563.6511381538. The cubic root of 1194645980 is about 1061.0757975592.

The spelling of 1194645980 in words is "one billion, one hundred ninety-four million, six hundred forty-five thousand, nine hundred eighty".