42229242 has 96 divisors (see below), whose sum is σ = 108017280. Its totient is φ = 12196800.

The previous prime is 42229237. The next prime is 42229261. The reversal of 42229242 is 24292224.

It is a happy number.

It is a super-4 number, since 4×42229242⁴ (a number of 32 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 150142 + ... + 150422.

It is an arithmetic number, because the mean of its divisors is an integer number (1125180).

Almost surely, 2^42229242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42229242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54008640).

42229242 is an abundant number, since it is smaller than the sum of its proper divisors (65788038).

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

42229242 is a wasteful number, since it uses less digits than its factorization.

42229242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 320 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 42229242 is about 6498.4030345924. The cubic root of 42229242 is about 348.2339390158.

The spelling of 42229242 in words is "forty-two million, two hundred twenty-nine thousand, two hundred forty-two".