42822612 has 72 divisors (see below), whose sum is σ = 124924800. Its totient is φ = 12115008.

The previous prime is 42822601. The next prime is 42822629. The reversal of 42822612 is 21622824.

It is a happy number.

42822612 is a `hidden beast` number, since 4 + 28 + 22 + 612 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26689 + ... + 28247.

Almost surely, 2^42822612 is an apocalyptic number.

42822612 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42822612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62462400).

42822612 is an abundant number, since it is smaller than the sum of its proper divisors (82102188).

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

42822612 is a wasteful number, since it uses less digits than its factorization.

42822612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685 (or 1680 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 42822612 is about 6543.8988378489. The cubic root of 42822612 is about 349.8573895191.

It can be divided in two parts, 42822 and 612, that added together give a palindrome (43434).

The spelling of 42822612 in words is "forty-two million, eight hundred twenty-two thousand, six hundred twelve".