42748469 has 2 divisors, whose sum is σ = 42748470. Its totient is φ = 42748468.

The previous prime is 42748429. The next prime is 42748483. The reversal of 42748469 is 96484724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42745444 + 3025 = 6538^2 + 55^2 .

It is a cyclic number.

It is not a de Polignac number, because 42748469 - 2¹⁶ = 42682933 is a prime.

It is a super-2 number, since 2×42748469² = 3654863203687922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42748429) 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 as a sum of consecutive naturals, namely, 21374234 + 21374235.

It is an arithmetic number, because the mean of its divisors is an integer number (21374235).

Almost surely, 2^42748469 is an apocalyptic number.

It is an amenable number.

42748469 is a deficient number, since it is larger than the sum of its proper divisors (1).

42748469 is an equidigital number, since it uses as much as digits as its factorization.

42748469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 44.

The square root of 42748469 is about 6538.2313357666. The cubic root of 42748469 is about 349.6553587059.

The spelling of 42748469 in words is "forty-two million, seven hundred forty-eight thousand, four hundred sixty-nine".