1000090920 has 64 divisors (see below), whose sum is σ = 3056901120. Its totient is φ = 261657344.

The previous prime is 1000090919. The next prime is 1000090939. The reversal of 1000090920 is 290900001.

It is a happy number.

1000090920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72264 + ... + 84983.

It is an arithmetic number, because the mean of its divisors is an integer number (47764080).

Almost surely, 2^1000090920 is an apocalyptic number.

1000090920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000090920 is an abundant number, since it is smaller than the sum of its proper divisors (2056810200).

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

1000090920 is a wasteful number, since it uses less digits than its factorization.

1000090920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157314 (or 157310 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1000090920 is about 31624.2141404336. The cubic root of 1000090920 is about 1000.0303057482.

Adding to 1000090920 its reverse (290900001), we get a palindrome (1290990921).

The spelling of 1000090920 in words is "one billion, ninety thousand, nine hundred twenty".