23742023 has 4 divisors (see below), whose sum is σ = 23874840. Its totient is φ = 23609208.

The previous prime is 23741983. The next prime is 23742029. The reversal of 23742023 is 32024732.

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

It is a cyclic number.

It is not a de Polignac number, because 23742023 - 2⁶ = 23741959 is a prime.

It is a super-2 number, since 2×23742023² = 1127367312265058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23742023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23742029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66140 + ... + 66497.

It is an arithmetic number, because the mean of its divisors is an integer number (5968710).

Almost surely, 2^23742023 is an apocalyptic number.

23742023 is a deficient number, since it is larger than the sum of its proper divisors (132817).

23742023 is a wasteful number, since it uses less digits than its factorization.

23742023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132816.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 23742023 is about 4872.5786807398. The cubic root of 23742023 is about 287.4126686229.

Adding to 23742023 its reverse (32024732), we get a palindrome (55766755).

The spelling of 23742023 in words is "twenty-three million, seven hundred forty-two thousand, twenty-three".