9049890 has 32 divisors (see below), whose sum is σ = 22864320. Its totient is φ = 2286144.

The previous prime is 9049877. The next prime is 9049913. The reversal of 9049890 is 989409.

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, 7369 + ... + 8508.

It is an arithmetic number, because the mean of its divisors is an integer number (714510).

Almost surely, 2^9049890 is an apocalyptic number.

9049890 is an abundant number, since it is smaller than the sum of its proper divisors (13814430).

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

9049890 is a wasteful number, since it uses less digits than its factorization.

9049890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15906.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 9049890 is about 3008.3035086241. The cubic root of 9049890 is about 208.3920275513.

The spelling of 9049890 in words is "nine million, forty-nine thousand, eight hundred ninety".