42229999 has 16 divisors (see below), whose sum is σ = 49654528. Its totient is φ = 35163072.

The previous prime is 42229991. The next prime is 42230009. The reversal of 42229999 is 99992224.

It is not a de Polignac number, because 42229999 - 2³ = 42229991 is a prime.

42229999 is a modest number, since divided by 9999 gives 4222 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42229991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92179 + ... + 92635.

It is an arithmetic number, because the mean of its divisors is an integer number (3103408).

Almost surely, 2^42229999 is an apocalyptic number.

42229999 is a deficient number, since it is larger than the sum of its proper divisors (7424529).

42229999 is a wasteful number, since it uses less digits than its factorization.

42229999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814.

The product of its digits is 209952, while the sum is 46.

The square root of 42229999 is about 6498.4612794107. The cubic root of 42229999 is about 348.2360198135.

The spelling of 42229999 in words is "forty-two million, two hundred twenty-nine thousand, nine hundred ninety-nine".