42002430 has 16 divisors (see below), whose sum is σ = 100805904. Its totient is φ = 11200640.

The previous prime is 42002383. The next prime is 42002431. The reversal of 42002430 is 3420024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42002431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700011 + ... + 700070.

It is an arithmetic number, because the mean of its divisors is an integer number (6300369).

Almost surely, 2^42002430 is an apocalyptic number.

42002430 is an abundant number, since it is smaller than the sum of its proper divisors (58803474).

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

42002430 is a wasteful number, since it uses less digits than its factorization.

42002430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400091.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 42002430 is about 6480.9281742664. The cubic root of 42002430 is about 347.6093681250.

Adding to 42002430 its reverse (3420024), we get a palindrome (45422454).

The spelling of 42002430 in words is "forty-two million, two thousand, four hundred thirty".