105840904 has 32 divisors (see below), whose sum is σ = 214200000. Its totient is φ = 48739392.

The previous prime is 105840893. The next prime is 105840937. The reversal of 105840904 is 409048501.

It is a happy number.

It is a super-2 number, since 2×105840904² = 22404593919074432, which contains 22 as substring.

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, 61447 + ... + 63145.

It is an arithmetic number, because the mean of its divisors is an integer number (6693750).

Almost surely, 2^105840904 is an apocalyptic number.

It is an amenable number.

105840904 is an abundant number, since it is smaller than the sum of its proper divisors (108359096).

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

105840904 is a wasteful number, since it uses less digits than its factorization.

105840904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317 (or 2313 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 105840904 is about 10287.9008548877. The cubic root of 105840904 is about 473.0254565128.

The spelling of 105840904 in words is "one hundred five million, eight hundred forty thousand, nine hundred four".