23240738 has 4 divisors (see below), whose sum is σ = 34861110. Its totient is φ = 11620368.

The previous prime is 23240729. The next prime is 23240753. The reversal of 23240738 is 83704232.

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., 23203489 + 37249 = 4817^2 + 193^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23240738.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5810183 + ... + 5810186.

Almost surely, 2^23240738 is an apocalyptic number.

23240738 is a deficient number, since it is larger than the sum of its proper divisors (11620372).

23240738 is a wasteful number, since it uses less digits than its factorization.

23240738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11620371.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 23240738 is about 4820.8648601677. The cubic root of 23240738 is about 285.3754690130.

The spelling of 23240738 in words is "twenty-three million, two hundred forty thousand, seven hundred thirty-eight".