42221160 has 48 divisors (see below), whose sum is σ = 137219940. Its totient is φ = 11258880.

The previous prime is 42221147. The next prime is 42221197. The reversal of 42221160 is 6112224.

It can be written as a sum of positive squares in 2 ways, for example, as 40525956 + 1695204 = 6366^2 + 1302^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 3.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58281 + ... + 59000.

Almost surely, 2^42221160 is an apocalyptic number.

42221160 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42221160 is an abundant number, since it is smaller than the sum of its proper divisors (94998780).

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

42221160 is a wasteful number, since it uses less digits than its factorization.

42221160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117298 (or 117291 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 42221160 is about 6497.7811597498. The cubic root of 42221160 is about 348.2117221338.

Adding to 42221160 its reverse (6112224), we get a palindrome (48333384).

The spelling of 42221160 in words is "forty-two million, two hundred twenty-one thousand, one hundred sixty".