23011642 has 16 divisors (see below), whose sum is σ = 36908352. Its totient is φ = 10722240.

The previous prime is 23011633. The next prime is 23011643. The reversal of 23011642 is 24611032.

It is not an unprimeable number, because it can be changed into a prime (23011643) 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 7 ways as a sum of consecutive naturals, for example, 217 + ... + 6787.

It is an arithmetic number, because the mean of its divisors is an integer number (2306772).

Almost surely, 2^23011642 is an apocalyptic number.

23011642 is a deficient number, since it is larger than the sum of its proper divisors (13896710).

23011642 is a wasteful number, since it uses less digits than its factorization.

23011642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6693.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 23011642 is about 4797.0451321621. The cubic root of 23011642 is about 284.4346729341.

Adding to 23011642 its reverse (24611032), we get a palindrome (47622674).

It can be divided in two parts, 23011 and 642, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 23011642 in words is "twenty-three million, eleven thousand, six hundred forty-two".