18236074 has 8 divisors (see below), whose sum is σ = 27817920. Its totient is φ = 8963436.

The previous prime is 18236063. The next prime is 18236077. The reversal of 18236074 is 47063281.

18236074 = 152² + 153² + ... + 387².

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18236077) 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, 77154 + ... + 77389.

It is an arithmetic number, because the mean of its divisors is an integer number (3477240).

Almost surely, 2^18236074 is an apocalyptic number.

18236074 is a deficient number, since it is larger than the sum of its proper divisors (9581846).

18236074 is a wasteful number, since it uses less digits than its factorization.

18236074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154604.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 18236074 is about 4270.3716465900. The cubic root of 18236074 is about 263.2148870008.

The spelling of 18236074 in words is "eighteen million, two hundred thirty-six thousand, seventy-four".