23031622 has 4 divisors (see below), whose sum is σ = 34547436. Its totient is φ = 11515810.

The previous prime is 23031611. The next prime is 23031623. The reversal of 23031622 is 22613032.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×23031622² = 1060911223901768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23031622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5757904 + ... + 5757907.

It is an arithmetic number, because the mean of its divisors is an integer number (8636859).

Almost surely, 2^23031622 is an apocalyptic number.

23031622 is a deficient number, since it is larger than the sum of its proper divisors (11515814).

23031622 is a wasteful number, since it uses less digits than its factorization.

23031622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11515813.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 23031622 is about 4799.1272123168. The cubic root of 23031622 is about 284.5169698397.

Adding to 23031622 its reverse (22613032), we get a palindrome (45644654).

It can be divided in two parts, 23031 and 622, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 23031622 in words is "twenty-three million, thirty-one thousand, six hundred twenty-two".