1209782068 has 96 divisors (see below), whose sum is σ = 2471067648. Its totient is φ = 513139200.

The previous prime is 1209782059. The next prime is 1209782069. The reversal of 1209782068 is 8602879021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1209782069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7244121 + ... + 7244287.

It is an arithmetic number, because the mean of its divisors is an integer number (25740288).

Almost surely, 2^1209782068 is an apocalyptic number.

It is an amenable number.

1209782068 is an abundant number, since it is smaller than the sum of its proper divisors (1261285580).

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

1209782068 is a wasteful number, since it uses less digits than its factorization.

1209782068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 1209782068 is about 34781.9215685390. The cubic root of 1209782068 is about 1065.5382580420.

The spelling of 1209782068 in words is "one billion, two hundred nine million, seven hundred eighty-two thousand, sixty-eight".