42227860 has 24 divisors (see below), whose sum is σ = 90134856. Its totient is φ = 16613760.

The previous prime is 42227833. The next prime is 42227869. The reversal of 42227860 is 6872224.

It can be written as a sum of positive squares in 4 ways, for example, as 81796 + 42146064 = 286^2 + 6492^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42227869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16087 + ... + 18526.

It is an arithmetic number, because the mean of its divisors is an integer number (3755619).

Almost surely, 2^42227860 is an apocalyptic number.

It is an amenable number.

42227860 is an abundant number, since it is smaller than the sum of its proper divisors (47906996).

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

42227860 is a wasteful number, since it uses less digits than its factorization.

42227860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34683 (or 34681 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 42227860 is about 6498.2966999053. The cubic root of 42227860 is about 348.2301401904.

It can be divided in two parts, 422 and 27860, that added together give a palindrome (28282).

The spelling of 42227860 in words is "forty-two million, two hundred twenty-seven thousand, eight hundred sixty".