42424132420 has 24 divisors (see below), whose sum is σ = 89107795224. Its totient is φ = 16966392576.

The previous prime is 42424132411. The next prime is 42424132423. The reversal of 42424132420 is 2423142424.

It can be written as a sum of positive squares in 4 ways, for example, as 8290830916 + 34133301504 = 91054^2 + 184752^2 .

It is not an unprimeable number, because it can be changed into a prime (42424132423) 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, 95679 + ... + 306598.

It is an arithmetic number, because the mean of its divisors is an integer number (3712824801).

Almost surely, 2^42424132420 is an apocalyptic number.

It is an amenable number.

42424132420 is an abundant number, since it is smaller than the sum of its proper divisors (46683662804).

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

42424132420 is a wasteful number, since it uses less digits than its factorization.

42424132420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407559 (or 407557 counting only the distinct ones).

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

Adding to 42424132420 its reverse (2423142424), we get a palindrome (44847274844).

The spelling of 42424132420 in words is "forty-two billion, four hundred twenty-four million, one hundred thirty-two thousand, four hundred twenty".