42021324244 has 24 divisors (see below), whose sum is σ = 73993134600. Its totient is φ = 20880530304.

The previous prime is 42021324239. The next prime is 42021324253. The reversal of 42021324244 is 44242312024.

It can be written as a sum of positive squares in 4 ways, for example, as 27152448400 + 14868875844 = 164780^2 + 121938^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1852282 + ... + 1874830.

It is an arithmetic number, because the mean of its divisors is an integer number (3083047275).

Almost surely, 2^42021324244 is an apocalyptic number.

It is an amenable number.

42021324244 is a deficient number, since it is larger than the sum of its proper divisors (31971810356).

42021324244 is a wasteful number, since it uses less digits than its factorization.

42021324244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25419 (or 25417 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 42021324244 its reverse (44242312024), we get a palindrome (86263636268).

The spelling of 42021324244 in words is "forty-two billion, twenty-one million, three hundred twenty-four thousand, two hundred forty-four".