42752669 has 4 divisors (see below), whose sum is σ = 43338396. Its totient is φ = 42166944.

The previous prime is 42752659. The next prime is 42752681. The reversal of 42752669 is 96625724.

42752669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23716900 + 19035769 = 4870^2 + 4363^2 .

It is a cyclic number.

It is not a de Polignac number, because 42752669 - 2¹⁶ = 42687133 is a prime.

It is a super-2 number, since 2×42752669² = 3655581413247122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42752659) 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 3 ways as a sum of consecutive naturals, for example, 292754 + ... + 292899.

It is an arithmetic number, because the mean of its divisors is an integer number (10834599).

Almost surely, 2^42752669 is an apocalyptic number.

It is an amenable number.

42752669 is a deficient number, since it is larger than the sum of its proper divisors (585727).

42752669 is an equidigital number, since it uses as much as digits as its factorization.

42752669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585726.

The product of its digits is 181440, while the sum is 41.

The square root of 42752669 is about 6538.5525156567. The cubic root of 42752669 is about 349.6668094428. Note that the first 3 decimals are identical.

The spelling of 42752669 in words is "forty-two million, seven hundred fifty-two thousand, six hundred sixty-nine".