1209764982 has 24 divisors (see below), whose sum is σ = 2570231016. Its totient is φ = 379533568.

The previous prime is 1209764981. The next prime is 1209765001. The reversal of 1209764982 is 2894679021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1209764981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 347103 + ... + 350570.

It is an arithmetic number, because the mean of its divisors is an integer number (107092959).

Almost surely, 2^1209764982 is an apocalyptic number.

1209764982 is an abundant number, since it is smaller than the sum of its proper divisors (1360466034).

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

1209764982 is a wasteful number, since it uses less digits than its factorization.

1209764982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697712 (or 697695 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 1209764982 is about 34781.6759515697. The cubic root of 1209764982 is about 1065.5332417467.

The spelling of 1209764982 in words is "one billion, two hundred nine million, seven hundred sixty-four thousand, nine hundred eighty-two".