42725441 has 4 divisors (see below), whose sum is σ = 46609584. Its totient is φ = 38841300.

The previous prime is 42725401. The next prime is 42725453. The reversal of 42725441 is 14452724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42725441 - 2²² = 38531137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42725401) 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 in 3 ways as a sum of consecutive naturals, for example, 1942055 + ... + 1942076.

It is an arithmetic number, because the mean of its divisors is an integer number (11652396).

Almost surely, 2^42725441 is an apocalyptic number.

It is an amenable number.

42725441 is a deficient number, since it is larger than the sum of its proper divisors (3884143).

42725441 is a wasteful number, since it uses less digits than its factorization.

42725441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3884142.

The product of its digits is 8960, while the sum is 29.

The square root of 42725441 is about 6536.4700718354. The cubic root of 42725441 is about 349.5925626181.

The spelling of 42725441 in words is "forty-two million, seven hundred twenty-five thousand, four hundred forty-one".