42486749 has 4 divisors (see below), whose sum is σ = 42688320. Its totient is φ = 42285180.

The previous prime is 42486737. The next prime is 42486751. The reversal of 42486749 is 94768424.

42486749 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42486749 - 2⁴ = 42486733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42486149) 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, 100469 + ... + 100890.

It is an arithmetic number, because the mean of its divisors is an integer number (10672080).

Almost surely, 2^42486749 is an apocalyptic number.

It is an amenable number.

42486749 is a deficient number, since it is larger than the sum of its proper divisors (201571).

42486749 is a wasteful number, since it uses less digits than its factorization.

42486749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201570.

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

The square root of 42486749 is about 6518.1860206656. The cubic root of 42486749 is about 348.9403296424.

The spelling of 42486749 in words is "forty-two million, four hundred eighty-six thousand, seven hundred forty-nine".