18070742 has 8 divisors (see below), whose sum is σ = 27193656. Its totient is φ = 9006192.

The previous prime is 18070733. The next prime is 18070747. The reversal of 18070742 is 24707081.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18070747) 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, 13808 + ... + 15059.

It is an arithmetic number, because the mean of its divisors is an integer number (3399207).

Almost surely, 2^18070742 is an apocalyptic number.

18070742 is a deficient number, since it is larger than the sum of its proper divisors (9122914).

18070742 is a wasteful number, since it uses less digits than its factorization.

18070742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29182.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 18070742 is about 4250.9695364705. The cubic root of 18070742 is about 262.4170174586.

The spelling of 18070742 in words is "eighteen million, seventy thousand, seven hundred forty-two".