42222830 has 16 divisors (see below), whose sum is σ = 81847584. Its totient is φ = 15589920.

The previous prime is 42222823. The next prime is 42222841. The reversal of 42222830 is 3822224.

It is a junction number, because it is equal to n+sod(n) for n = 42222796 and 42222805.

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 7 ways as a sum of consecutive naturals, for example, 162266 + ... + 162525.

It is an arithmetic number, because the mean of its divisors is an integer number (5115474).

Almost surely, 2^42222830 is an apocalyptic number.

42222830 is a deficient number, since it is larger than the sum of its proper divisors (39624754).

42222830 is a wasteful number, since it uses less digits than its factorization.

42222830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324811.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 42222830 is about 6497.9096638842. The cubic root of 42222830 is about 348.2163130855.

The spelling of 42222830 in words is "forty-two million, two hundred twenty-two thousand, eight hundred thirty".