42030030 has 64 divisors (see below), whose sum is σ = 115872768. Its totient is φ = 9557760.

The previous prime is 42029989. The next prime is 42030031. The reversal of 42030030 is 3003024.

It is a junction number, because it is equal to n+sod(n) for n = 42029988 and 42030015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42030031) 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, 54850 + ... + 55610.

It is an arithmetic number, because the mean of its divisors is an integer number (1810512).

Almost surely, 2^42030030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42030030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57936384).

42030030 is an abundant number, since it is smaller than the sum of its proper divisors (73842738).

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

42030030 is a wasteful number, since it uses less digits than its factorization.

42030030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 42030030 is about 6483.0571492159. The cubic root of 42030030 is about 347.6854900534.

Adding to 42030030 its reverse (3003024), we get a palindrome (45033054).

The spelling of 42030030 in words is "forty-two million, thirty thousand, thirty", and thus it is an eban number.