42251372 has 6 divisors (see below), whose sum is σ = 73939908. Its totient is φ = 21125684.

The previous prime is 42251371. The next prime is 42251381. The reversal of 42251372 is 27315224.

It is not an unprimeable number, because it can be changed into a prime (42251371) 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 as a sum of consecutive naturals, namely, 5281418 + ... + 5281425.

It is an arithmetic number, because the mean of its divisors is an integer number (12323318).

Almost surely, 2^42251372 is an apocalyptic number.

It is an amenable number.

42251372 is a deficient number, since it is larger than the sum of its proper divisors (31688536).

42251372 is a wasteful number, since it uses less digits than its factorization.

42251372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10562847 (or 10562845 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 42251372 is about 6500.1055376048. The cubic root of 42251372 is about 348.2947584144.

Adding to 42251372 its reverse (27315224), we get a palindrome (69566596).

The spelling of 42251372 in words is "forty-two million, two hundred fifty-one thousand, three hundred seventy-two".