42430122 has 32 divisors (see below), whose sum is σ = 107760000. Its totient is φ = 12122784.

The previous prime is 42430117. The next prime is 42430139. The reversal of 42430122 is 22103424.

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

It is a junction number, because it is equal to n+sod(n) for n = 42430095 and 42430104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55747 + ... + 56502.

It is an arithmetic number, because the mean of its divisors is an integer number (3367500).

Almost surely, 2^42430122 is an apocalyptic number.

42430122 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

42430122 is an abundant number, since it is smaller than the sum of its proper divisors (65329878).

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

42430122 is a wasteful number, since it uses less digits than its factorization.

42430122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112267 (or 112261 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 42430122 is about 6513.8408024759. The cubic root of 42430122 is about 348.7852363519.

Adding to 42430122 its reverse (22103424), we get a palindrome (64533546).

The spelling of 42430122 in words is "forty-two million, four hundred thirty thousand, one hundred twenty-two".