42218038 has 16 divisors (see below), whose sum is σ = 70582320. Its totient is φ = 18821376.

The previous prime is 42217991. The next prime is 42218081. The reversal of 42218038 is 83081224.

It is a junction number, because it is equal to n+sod(n) for n = 42217997 and 42218015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32031 + ... + 33322.

It is an arithmetic number, because the mean of its divisors is an integer number (4411395).

Almost surely, 2^42218038 is an apocalyptic number.

42218038 is a deficient number, since it is larger than the sum of its proper divisors (28364282).

42218038 is a wasteful number, since it uses less digits than its factorization.

42218038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65391.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 42218038 is about 6497.5409194556. The cubic root of 42218038 is about 348.2031392038.

The spelling of 42218038 in words is "forty-two million, two hundred eighteen thousand, thirty-eight".