42142452 has 96 divisors (see below), whose sum is σ = 113097600. Its totient is φ = 12096000.

The previous prime is 42142427. The next prime is 42142453. The reversal of 42142452 is 25424124.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42142453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 386574 + ... + 386682.

It is an arithmetic number, because the mean of its divisors is an integer number (1178100).

Almost surely, 2^42142452 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 42142452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56548800).

42142452 is an abundant number, since it is smaller than the sum of its proper divisors (70955148).

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

42142452 is a wasteful number, since it uses less digits than its factorization.

42142452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 255 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 42142452 is about 6491.7218054997. The cubic root of 42142452 is about 347.9952106621.

Adding to 42142452 its reverse (25424124), we get a palindrome (67566576).

It can be divided in two parts, 4214 and 2452, that added together give a palindrome (6666).

The spelling of 42142452 in words is "forty-two million, one hundred forty-two thousand, four hundred fifty-two".