42229530 has 96 divisors (see below), whose sum is σ = 132897024. Its totient is φ = 9082368.

The previous prime is 42229519. The next prime is 42229531. The reversal of 42229530 is 3592224.

It is a junction number, because it is equal to n+sod(n) for n = 42229494 and 42229503.

It is not an unprimeable number, because it can be changed into a prime (42229531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8739 + ... + 12681.

It is an arithmetic number, because the mean of its divisors is an integer number (1384344).

Almost surely, 2^42229530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42229530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66448512).

42229530 is an abundant number, since it is smaller than the sum of its proper divisors (90667494).

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

42229530 is a wasteful number, since it uses less digits than its factorization.

42229530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3980 (or 3977 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 42229530 is about 6498.4251938450. The cubic root of 42229530 is about 348.2347306564.

The spelling of 42229530 in words is "forty-two million, two hundred twenty-nine thousand, five hundred thirty".