23620042 has 4 divisors (see below), whose sum is σ = 35430066. Its totient is φ = 11810020.

The previous prime is 23620039. The next prime is 23620049. The reversal of 23620042 is 24002632.

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

It can be written as a sum of positive squares in only one way, i.e., 19616041 + 4004001 = 4429^2 + 2001^2 .

It is a super-3 number, since 3×23620042³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (23620049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5905009 + ... + 5905012.

Almost surely, 2^23620042 is an apocalyptic number.

23620042 is a deficient number, since it is larger than the sum of its proper divisors (11810024).

23620042 is a wasteful number, since it uses less digits than its factorization.

23620042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11810023.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 23620042 is about 4860.0454730383. The cubic root of 23620042 is about 286.9196033918.

Adding to 23620042 its reverse (24002632), we get a palindrome (47622674).

The spelling of 23620042 in words is "twenty-three million, six hundred twenty thousand, forty-two".