42112572 has 12 divisors (see below), whose sum is σ = 98262696. Its totient is φ = 14037520.

The previous prime is 42112571. The next prime is 42112589. The reversal of 42112572 is 27521124.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42112571) 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 3 ways as a sum of consecutive naturals, for example, 1754679 + ... + 1754702.

It is an arithmetic number, because the mean of its divisors is an integer number (8188558).

Almost surely, 2^42112572 is an apocalyptic number.

It is an amenable number.

42112572 is an abundant number, since it is smaller than the sum of its proper divisors (56150124).

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

42112572 is a wasteful number, since it uses less digits than its factorization.

42112572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3509388 (or 3509386 counting only the distinct ones).

The product of its digits is 1120, while the sum is 24.

The square root of 42112572 is about 6489.4200049003. The cubic root of 42112572 is about 347.9129455915.

Adding to 42112572 its reverse (27521124), we get a palindrome (69633696).

The spelling of 42112572 in words is "forty-two million, one hundred twelve thousand, five hundred seventy-two".