42623018 has 8 divisors (see below), whose sum is σ = 64982820. Its totient is φ = 20962080.

The previous prime is 42622999. The next prime is 42623027. The reversal of 42623018 is 81032624.

It can be written as a sum of positive squares in 2 ways, for example, as 40615129 + 2007889 = 6373^2 + 1417^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174563 + ... + 174806.

Almost surely, 2^42623018 is an apocalyptic number.

42623018 is a deficient number, since it is larger than the sum of its proper divisors (22359802).

42623018 is a wasteful number, since it uses less digits than its factorization.

42623018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349432.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 42623018 is about 6528.6306374308. The cubic root of 42623018 is about 349.3129870425.

The spelling of 42623018 in words is "forty-two million, six hundred twenty-three thousand, eighteen".