42242310 has 120 divisors (see below), whose sum is σ = 125139168. Its totient is φ = 10216800.

The previous prime is 42242309. The next prime is 42242311. The reversal of 42242310 is 1324224.

It is an interprime number because it is at equal distance from previous prime (42242309) and next prime (42242311).

It is a super-2 number, since 2×42242310² = 3568825508272200, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242311) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 97795 + ... + 98225.

Almost surely, 2^42242310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42242310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62569584).

42242310 is an abundant number, since it is smaller than the sum of its proper divisors (82896858).

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

42242310 is a wasteful number, since it uses less digits than its factorization.

42242310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 452 counting only the distinct ones).

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

The square root of 42242310 is about 6499.4084346193. The cubic root of 42242310 is about 348.2698560847.

Adding to 42242310 its reverse (1324224), we get a palindrome (43566534).

The spelling of 42242310 in words is "forty-two million, two hundred forty-two thousand, three hundred ten".