42242430 has 32 divisors (see below), whose sum is σ = 101844864. Its totient is φ = 11213216.

The previous prime is 42242413. The next prime is 42242437. The reversal of 42242430 is 3424224.

It is a junction number, because it is equal to n+sod(n) for n = 42242397 and 42242406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3709 + ... + 9911.

It is an arithmetic number, because the mean of its divisors is an integer number (3182652).

Almost surely, 2^42242430 is an apocalyptic number.

42242430 is an abundant number, since it is smaller than the sum of its proper divisors (59602434).

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

42242430 is a wasteful number, since it uses less digits than its factorization.

42242430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6440.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 42242430 is about 6499.4176662221. The cubic root of 42242430 is about 348.2701858674.

Adding to 42242430 its reverse (3424224), we get a palindrome (45666654).

The spelling of 42242430 in words is "forty-two million, two hundred forty-two thousand, four hundred thirty".