42265457 has 8 divisors (see below), whose sum is σ = 45782184. Its totient is φ = 38786688.

The previous prime is 42265427. The next prime is 42265463. The reversal of 42265457 is 75456224.

42265457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11806096 + 30459361 = 3436^2 + 5519^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42265457 - 2¹² = 42261361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42265427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7148 + ... + 11645.

It is an arithmetic number, because the mean of its divisors is an integer number (5722773).

Almost surely, 2^42265457 is an apocalyptic number.

It is an amenable number.

42265457 is a deficient number, since it is larger than the sum of its proper divisors (3516727).

42265457 is a wasteful number, since it uses less digits than its factorization.

42265457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18979.

The product of its digits is 67200, while the sum is 35.

The square root of 42265457 is about 6501.1888912721. The cubic root of 42265457 is about 348.3334568551. Note that the first 3 decimals are identical.

The spelling of 42265457 in words is "forty-two million, two hundred sixty-five thousand, four hundred fifty-seven".