42022208 has 14 divisors (see below), whose sum is σ = 83387946. Its totient is φ = 21011072.

The previous prime is 42022207. The next prime is 42022241. The reversal of 42022208 is 80222024.

It can be written as a sum of positive squares in only one way, i.e., 41886784 + 135424 = 6472^2 + 368^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42022208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42022207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328235 + ... + 328362.

Almost surely, 2^42022208 is an apocalyptic number.

It is an amenable number.

42022208 is a deficient number, since it is larger than the sum of its proper divisors (41365738).

42022208 is an equidigital number, since it uses as much as digits as its factorization.

42022208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656609 (or 656599 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 42022208 is about 6482.4538563726. The cubic root of 42022208 is about 347.6639200424.

The spelling of 42022208 in words is "forty-two million, twenty-two thousand, two hundred eight".