42222510 has 48 divisors (see below), whose sum is σ = 119761200. Its totient is φ = 10235520.

The previous prime is 42222487. The next prime is 42222533. The reversal of 42222510 is 1522224.

It is an interprime number because it is at equal distance from previous prime (42222487) and next prime (42222533).

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

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 20335 + ... + 22314.

It is an arithmetic number, because the mean of its divisors is an integer number (2495025).

Almost surely, 2^42222510 is an apocalyptic number.

42222510 is an abundant number, since it is smaller than the sum of its proper divisors (77538690).

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

42222510 is a wasteful number, since it uses less digits than its factorization.

42222510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42673 (or 42670 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 42222510 is about 6497.8850405343. The cubic root of 42222510 is about 348.2154333915.

Adding to 42222510 its reverse (1522224), we get a palindrome (43744734).

The spelling of 42222510 in words is "forty-two million, two hundred twenty-two thousand, five hundred ten".