23102742 has 32 divisors (see below), whose sum is σ = 50006880. Its totient is φ = 7073280.

The previous prime is 23102731. The next prime is 23102743. The reversal of 23102742 is 24720132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23102743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18184 + ... + 19412.

It is an arithmetic number, because the mean of its divisors is an integer number (1562715).

Almost surely, 2^23102742 is an apocalyptic number.

23102742 is an abundant number, since it is smaller than the sum of its proper divisors (26904138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23102742 is a wasteful number, since it uses less digits than its factorization.

23102742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 23102742 is about 4806.5311816319. The cubic root of 23102742 is about 284.8095249281.

Adding to 23102742 its reverse (24720132), we get a palindrome (47822874).

The spelling of 23102742 in words is "twenty-three million, one hundred two thousand, seven hundred forty-two".