1220826692 has 48 divisors (see below), whose sum is σ = 2252275200. Its totient is φ = 578328192.

The previous prime is 1220826599. The next prime is 1220826707. The reversal of 1220826692 is 2966280221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2037809 + ... + 2038407.

It is an arithmetic number, because the mean of its divisors is an integer number (46922400).

Almost surely, 2^1220826692 is an apocalyptic number.

It is an amenable number.

1220826692 is a deficient number, since it is larger than the sum of its proper divisors (1031448508).

1220826692 is a wasteful number, since it uses less digits than its factorization.

1220826692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980 (or 978 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1220826692 is about 34940.3304506411. The cubic root of 1220826692 is about 1068.7710267422.

The spelling of 1220826692 in words is "one billion, two hundred twenty million, eight hundred twenty-six thousand, six hundred ninety-two".