42725288 has 8 divisors (see below), whose sum is σ = 80109930. Its totient is φ = 21362640.

The previous prime is 42725279. The next prime is 42725317. The reversal of 42725288 is 88252724.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 42016324 + 708964 = 6482^2 + 842^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2670323 + ... + 2670338.

Almost surely, 2^42725288 is an apocalyptic number.

It is an amenable number.

42725288 is a deficient number, since it is larger than the sum of its proper divisors (37384642).

42725288 is a wasteful number, since it uses less digits than its factorization.

42725288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5340667 (or 5340663 counting only the distinct ones).

The product of its digits is 71680, while the sum is 38.

The square root of 42725288 is about 6536.4583682603. The cubic root of 42725288 is about 349.5921453201.

The spelling of 42725288 in words is "forty-two million, seven hundred twenty-five thousand, two hundred eighty-eight".