1021194104 has 24 divisors (see below), whose sum is σ = 2227350240. Its totient is φ = 437654448.

The previous prime is 1021194047. The next prime is 1021194137. The reversal of 1021194104 is 4014911201.

It is a self number, because there is not a number n which added to its sum of digits gives 1021194104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1302152 + ... + 1302935.

It is an arithmetic number, because the mean of its divisors is an integer number (92806260).

Almost surely, 2^1021194104 is an apocalyptic number.

1021194104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1021194104 is an abundant number, since it is smaller than the sum of its proper divisors (1206156136).

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

1021194104 is a wasteful number, since it uses less digits than its factorization.

1021194104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605107 (or 2605096 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1021194104 is about 31956.1278004704. The cubic root of 1021194104 is about 1007.0153708175.

The spelling of 1021194104 in words is "one billion, twenty-one million, one hundred ninety-four thousand, one hundred four".