42694265 has 4 divisors (see below), whose sum is σ = 51233124. Its totient is φ = 34155408.

The previous prime is 42694261. The next prime is 42694303. The reversal of 42694265 is 56249624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19035769 + 23658496 = 4363^2 + 4864^2 .

It is a cyclic number.

It is not a de Polignac number, because 42694265 - 2² = 42694261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42694261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4269422 + ... + 4269431.

It is an arithmetic number, because the mean of its divisors is an integer number (12808281).

Almost surely, 2^42694265 is an apocalyptic number.

It is an amenable number.

42694265 is a deficient number, since it is larger than the sum of its proper divisors (8538859).

42694265 is an equidigital number, since it uses as much as digits as its factorization.

42694265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8538858.

The product of its digits is 103680, while the sum is 38.

The square root of 42694265 is about 6534.0848632383. The cubic root of 42694265 is about 349.5075114210.

The spelling of 42694265 in words is "forty-two million, six hundred ninety-four thousand, two hundred sixty-five".