22723004 has 6 divisors (see below), whose sum is σ = 39765264. Its totient is φ = 11361500.

The previous prime is 22723003. The next prime is 22723009. The reversal of 22723004 is 40032722.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22723003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2840372 + ... + 2840379.

It is an arithmetic number, because the mean of its divisors is an integer number (6627544).

Almost surely, 2^22723004 is an apocalyptic number.

It is an amenable number.

22723004 is a deficient number, since it is larger than the sum of its proper divisors (17042260).

22723004 is a wasteful number, since it uses less digits than its factorization.

22723004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5680755 (or 5680753 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 22723004 is about 4766.8652173100. The cubic root of 22723004 is about 283.2404321336.

Adding to 22723004 its reverse (40032722), we get a palindrome (62755726).

The spelling of 22723004 in words is "twenty-two million, seven hundred twenty-three thousand, four".