42422051 has 8 divisors (see below), whose sum is σ = 50590464. Its totient is φ = 34780680.

The previous prime is 42422033. The next prime is 42422053. The reversal of 42422051 is 15022424.

It is a happy number.

42422051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42422051 is a prime.

It is a super-2 number, since 2×42422051² = 3599260822093202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42422053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131585 + ... + 131906.

It is an arithmetic number, because the mean of its divisors is an integer number (6323808).

Almost surely, 2^42422051 is an apocalyptic number.

42422051 is a deficient number, since it is larger than the sum of its proper divisors (8168413).

42422051 is a wasteful number, since it uses less digits than its factorization.

42422051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263521.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 42422051 is about 6513.2212460502. The cubic root of 42422051 is about 348.7631197987.

Adding to 42422051 its reverse (15022424), we get a palindrome (57444475).

The spelling of 42422051 in words is "forty-two million, four hundred twenty-two thousand, fifty-one".