42774222 has 8 divisors (see below), whose sum is σ = 85548456. Its totient is φ = 14258072.

The previous prime is 42774209. The next prime is 42774253. The reversal of 42774222 is 22247724.

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

42774222 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 42774222.

It is a congruent number.

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, 3564513 + ... + 3564524.

It is an arithmetic number, because the mean of its divisors is an integer number (10693557).

Almost surely, 2^42774222 is an apocalyptic number.

42774222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42774222 is a wasteful number, since it uses less digits than its factorization.

42774222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7129042.

The product of its digits is 12544, while the sum is 30.

The square root of 42774222 is about 6540.2004556435. The cubic root of 42774222 is about 349.7255590120.

The spelling of 42774222 in words is "forty-two million, seven hundred seventy-four thousand, two hundred twenty-two".