42421003452 has 120 divisors (see below), whose sum is σ = 113682307200. Its totient is φ = 13786373664.

The previous prime is 42421003439. The next prime is 42421003517. The reversal of 42421003452 is 25430012424.

42421003452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8621449 + ... + 8626367.

It is an arithmetic number, because the mean of its divisors is an integer number (947352560).

Almost surely, 2^42421003452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42421003452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56841153600).

42421003452 is an abundant number, since it is smaller than the sum of its proper divisors (71261303748).

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

42421003452 is a wasteful number, since it uses less digits than its factorization.

42421003452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5597 (or 5586 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 42421003452 its reverse (25430012424), we get a palindrome (67851015876).

The spelling of 42421003452 in words is "forty-two billion, four hundred twenty-one million, three thousand, four hundred fifty-two".