42725306 has 32 divisors (see below), whose sum is σ = 74003328. Its totient is φ = 18342720.

The previous prime is 42725279. The next prime is 42725317. The reversal of 42725306 is 60352724.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21161 + ... + 23091.

It is an arithmetic number, because the mean of its divisors is an integer number (2312604).

Almost surely, 2^42725306 is an apocalyptic number.

42725306 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

42725306 is a deficient number, since it is larger than the sum of its proper divisors (31278022).

42725306 is a wasteful number, since it uses less digits than its factorization.

42725306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 42725306 is about 6536.4597451526. The cubic root of 42725306 is about 349.5921944140.

The spelling of 42725306 in words is "forty-two million, seven hundred twenty-five thousand, three hundred six".