105090404 has 12 divisors (see below), whose sum is σ = 191904384. Its totient is φ = 50260584.

The previous prime is 105090383. The next prime is 105090431. The reversal of 105090404 is 404090501.

It is a happy number.

It is a super-2 number, since 2×105090404² = 22087986025766432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 105090404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571052 + ... + 571235.

It is an arithmetic number, because the mean of its divisors is an integer number (15992032).

Almost surely, 2^105090404 is an apocalyptic number.

It is an amenable number.

105090404 is a deficient number, since it is larger than the sum of its proper divisors (86813980).

105090404 is a wasteful number, since it uses less digits than its factorization.

105090404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142314 (or 1142312 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 105090404 is about 10251.3610803639. The cubic root of 105090404 is about 471.9047555115.

The spelling of 105090404 in words is "one hundred five million, ninety thousand, four hundred four".