23730442 has 4 divisors (see below), whose sum is σ = 35595666. Its totient is φ = 11865220.

The previous prime is 23730433. The next prime is 23730463. The reversal of 23730442 is 24403732.

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., 18156121 + 5574321 = 4261^2 + 2361^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5932609 + ... + 5932612.

Almost surely, 2^23730442 is an apocalyptic number.

23730442 is a deficient number, since it is larger than the sum of its proper divisors (11865224).

23730442 is a wasteful number, since it uses less digits than its factorization.

23730442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11865223.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 23730442 is about 4871.3901506654. The cubic root of 23730442 is about 287.3659291704.

The spelling of 23730442 in words is "twenty-three million, seven hundred thirty thousand, four hundred forty-two".