23021770 has 32 divisors (see below), whose sum is σ = 43579008. Its totient is φ = 8745408.

The previous prime is 23021759. The next prime is 23021771. The reversal of 23021770 is 7712032.

It is not an unprimeable number, because it can be changed into a prime (23021771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15187 + ... + 16633.

It is an arithmetic number, because the mean of its divisors is an integer number (1361844).

Almost surely, 2^23021770 is an apocalyptic number.

23021770 is a deficient number, since it is larger than the sum of its proper divisors (20557238).

23021770 is a wasteful number, since it uses less digits than its factorization.

23021770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 23021770 is about 4798.1006658885. The cubic root of 23021770 is about 284.4763957548.

The spelling of 23021770 in words is "twenty-three million, twenty-one thousand, seven hundred seventy".