1209696080 has 20 divisors (see below), whose sum is σ = 2812543572. Its totient is φ = 483878400.

The previous prime is 1209696049. The next prime is 1209696107. The reversal of 1209696080 is 806969021.

It can be written as a sum of positive squares in 2 ways, for example, as 317837584 + 891858496 = 17828^2 + 29864^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7560521 + ... + 7560680.

Almost surely, 2^1209696080 is an apocalyptic number.

1209696080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1209696080 is an abundant number, since it is smaller than the sum of its proper divisors (1602847492).

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

1209696080 is a wasteful number, since it uses less digits than its factorization.

1209696080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15121214 (or 15121208 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 1209696080 is about 34780.6854446545. The cubic root of 1209696080 is about 1065.5130122624.

The spelling of 1209696080 in words is "one billion, two hundred nine million, six hundred ninety-six thousand, eighty".