42754779 has 12 divisors (see below), whose sum is σ = 65389896. Its totient is φ = 26826432.

The previous prime is 42754757. The next prime is 42754781. The reversal of 42754779 is 97745724.

42754779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42754779 - 2¹⁶ = 42689243 is a prime.

It is a super-2 number, since 2×42754779² = 3655942254677682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42754979) 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 11 ways as a sum of consecutive naturals, for example, 139569 + ... + 139874.

It is an arithmetic number, because the mean of its divisors is an integer number (5449158).

Almost surely, 2^42754779 is an apocalyptic number.

42754779 is a deficient number, since it is larger than the sum of its proper divisors (22635117).

42754779 is a wasteful number, since it uses less digits than its factorization.

42754779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279466 (or 279463 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 42754779 is about 6538.7138643620. The cubic root of 42754779 is about 349.6725617919.

The spelling of 42754779 in words is "forty-two million, seven hundred fifty-four thousand, seven hundred seventy-nine".