1121686404 has 24 divisors (see below), whose sum is σ = 2636376288. Its totient is φ = 371165760.

The previous prime is 1121686399. The next prime is 1121686411. The reversal of 1121686404 is 4046861211.

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, 339502 + ... + 342789.

It is an arithmetic number, because the mean of its divisors is an integer number (109849012).

Almost surely, 2^1121686404 is an apocalyptic number.

It is an amenable number.

1121686404 is an abundant number, since it is smaller than the sum of its proper divisors (1514689884).

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

1121686404 is a wasteful number, since it uses less digits than its factorization.

1121686404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682435 (or 682433 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 1121686404 is about 33491.5870630223. The cubic root of 1121686404 is about 1039.0197877205.

The spelling of 1121686404 in words is "one billion, one hundred twenty-one million, six hundred eighty-six thousand, four hundred four".