1216074692 has 24 divisors (see below), whose sum is σ = 2434548480. Its totient is φ = 520660800.

The previous prime is 1216074683. The next prime is 1216074707. The reversal of 1216074692 is 2964706121.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8192 + ... + 49992.

It is an arithmetic number, because the mean of its divisors is an integer number (101439520).

Almost surely, 2^1216074692 is an apocalyptic number.

It is an amenable number.

1216074692 is an abundant number, since it is smaller than the sum of its proper divisors (1218473788).

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

1216074692 is a wasteful number, since it uses less digits than its factorization.

1216074692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42851 (or 42849 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1216074692 is about 34872.2625018796. The cubic root of 1216074692 is about 1067.3825130168.

The spelling of 1216074692 in words is "one billion, two hundred sixteen million, seventy-four thousand, six hundred ninety-two".