42818506 has 8 divisors (see below), whose sum is σ = 64322784. Its totient is φ = 21377580.

The previous prime is 42818459. The next prime is 42818507. The reversal of 42818506 is 60581824.

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 (42818507) 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, 14110 + ... + 16873.

It is an arithmetic number, because the mean of its divisors is an integer number (8040348).

Almost surely, 2^42818506 is an apocalyptic number.

42818506 is a deficient number, since it is larger than the sum of its proper divisors (21504278).

42818506 is a wasteful number, since it uses less digits than its factorization.

42818506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31676.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 42818506 is about 6543.5851029844. The cubic root of 42818506 is about 349.8462072621.

The spelling of 42818506 in words is "forty-two million, eight hundred eighteen thousand, five hundred six".