42281475 has 48 divisors (see below), whose sum is σ = 73900032. Its totient is φ = 21288960.

The previous prime is 42281471. The next prime is 42281501. The reversal of 42281475 is 57418224.

It is not a de Polignac number, because 42281475 - 2² = 42281471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42281471) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 218979 + ... + 219171.

It is an arithmetic number, because the mean of its divisors is an integer number (1539584).

Almost surely, 2^42281475 is an apocalyptic number.

42281475 is a deficient number, since it is larger than the sum of its proper divisors (31618557).

42281475 is a wasteful number, since it uses less digits than its factorization.

42281475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 351 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 42281475 is about 6502.4207030920. The cubic root of 42281475 is about 348.3774557531.

Adding to 42281475 its reverse (57418224), we get a palindrome (99699699).

The spelling of 42281475 in words is "forty-two million, two hundred eighty-one thousand, four hundred seventy-five".