42147268 has 6 divisors (see below), whose sum is σ = 73757726. Its totient is φ = 21073632.

The previous prime is 42147251. The next prime is 42147269. The reversal of 42147268 is 86274124.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 31270464 + 10876804 = 5592^2 + 3298^2 .

It is not an unprimeable number, because it can be changed into a prime (42147269) 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, 5268405 + ... + 5268412.

Almost surely, 2^42147268 is an apocalyptic number.

It is an amenable number.

42147268 is a deficient number, since it is larger than the sum of its proper divisors (31610458).

42147268 is a wasteful number, since it uses less digits than its factorization.

42147268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10536821 (or 10536819 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 42147268 is about 6492.0927288510. The cubic root of 42147268 is about 348.0084663462.

The spelling of 42147268 in words is "forty-two million, one hundred forty-seven thousand, two hundred sixty-eight".