1092020100 has 72 divisors (see below), whose sum is σ = 3163214208. Its totient is φ = 290870400.

The previous prime is 1092020099. The next prime is 1092020107. The reversal of 1092020100 is 10202901.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1092020100.

It is not an unprimeable number, because it can be changed into a prime (1092020107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 367822 + ... + 370778.

Almost surely, 2^1092020100 is an apocalyptic number.

1092020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1092020100 is an abundant number, since it is smaller than the sum of its proper divisors (2071194108).

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

1092020100 is a wasteful number, since it uses less digits than its factorization.

1092020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4205 (or 4198 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1092020100 is about 33045.7274091523. The cubic root of 1092020100 is about 1029.7778450720. Note that the first 3 decimals are identical.

The spelling of 1092020100 in words is "one billion, ninety-two million, twenty thousand, one hundred".