42030318 has 64 divisors (see below), whose sum is σ = 97678080. Its totient is φ = 12022560.

The previous prime is 42030277. The next prime is 42030319. The reversal of 42030318 is 81303024.

It is a happy number.

It is a super-2 number, since 2×42030318² = 3533095262362248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42030294 and 42030303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42030319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151596 + ... + 151872.

It is an arithmetic number, because the mean of its divisors is an integer number (1526220).

Almost surely, 2^42030318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42030318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48839040).

42030318 is an abundant number, since it is smaller than the sum of its proper divisors (55647762).

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

42030318 is a wasteful number, since it uses less digits than its factorization.

42030318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 42030318 is about 6483.0793609210. The cubic root of 42030318 is about 347.6862841935.

The spelling of 42030318 in words is "forty-two million, thirty thousand, three hundred eighteen".