20240890 has 16 divisors (see below), whose sum is σ = 38351520. Its totient is φ = 7670160.

The previous prime is 20240873. The next prime is 20240903. The reversal of 20240890 is 9804202.

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, 53076 + ... + 53455.

It is an arithmetic number, because the mean of its divisors is an integer number (2396970).

Almost surely, 2^20240890 is an apocalyptic number.

20240890 is a deficient number, since it is larger than the sum of its proper divisors (18110630).

20240890 is a wasteful number, since it uses less digits than its factorization.

20240890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106557.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20240890 is about 4498.9876639084. The cubic root of 20240890 is about 272.5272087973.

The spelling of 20240890 in words is "twenty million, two hundred forty thousand, eight hundred ninety".