42111630 has 96 divisors (see below), whose sum is σ = 123530400. Its totient is φ = 10200960.

The previous prime is 42111623. The next prime is 42111659. The reversal of 42111630 is 3611124.

It is a happy number.

42111630 is a `hidden beast` number, since 4 + 21 + 11 + 630 = 666.

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

It is a Curzon number.

It is a congruent number.

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, 32026 + ... + 33314.

It is an arithmetic number, because the mean of its divisors is an integer number (1286775).

Almost surely, 2^42111630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42111630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61765200).

42111630 is an abundant number, since it is smaller than the sum of its proper divisors (81418770).

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

42111630 is a wasteful number, since it uses less digits than its factorization.

42111630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327 (or 1310 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 42111630 is about 6489.3474248186. The cubic root of 42111630 is about 347.9103514617.

Adding to 42111630 its reverse (3611124), we get a palindrome (45722754).

The spelling of 42111630 in words is "forty-two million, one hundred eleven thousand, six hundred thirty".