42228102 has 96 divisors (see below), whose sum is σ = 106099200. Its totient is φ = 11195520.

The previous prime is 42228083. The next prime is 42228103. The reversal of 42228102 is 20182224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42228103) 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, 594727 + ... + 594797.

It is an arithmetic number, because the mean of its divisors is an integer number (1105200).

Almost surely, 2^42228102 is an apocalyptic number.

42228102 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 42228102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53049600).

42228102 is an abundant number, since it is smaller than the sum of its proper divisors (63871098).

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

42228102 is a wasteful number, since it uses less digits than its factorization.

42228102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 42228102 is about 6498.3153201426. The cubic root of 42228102 is about 348.2308054032.

The spelling of 42228102 in words is "forty-two million, two hundred twenty-eight thousand, one hundred two".