42021324234 has 48 divisors (see below), whose sum is σ = 99196857600. Its totient is φ = 13183155648.

The previous prime is 42021324211. The next prime is 42021324239. The reversal of 42021324234 is 43242312024.

42021324234 is a `hidden beast` number, since 4 + 20 + 213 + 2 + 423 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 42021324198 and 42021324207.

It is not an unprimeable number, because it can be changed into a prime (42021324239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1330714 + ... + 1361925.

It is an arithmetic number, because the mean of its divisors is an integer number (2066601200).

Almost surely, 2^42021324234 is an apocalyptic number.

42021324234 is an abundant number, since it is smaller than the sum of its proper divisors (57175533366).

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

42021324234 is a wasteful number, since it uses less digits than its factorization.

42021324234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692684 (or 2692661 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 42021324234 its reverse (43242312024), we get a palindrome (85263636258).

The spelling of 42021324234 in words is "forty-two billion, twenty-one million, three hundred twenty-four thousand, two hundred thirty-four".