42004763 has 4 divisors (see below), whose sum is σ = 44215560. Its totient is φ = 39793968.

The previous prime is 42004751. The next prime is 42004769. The reversal of 42004763 is 36740024.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42004763 - 2¹⁰ = 42003739 is a prime.

It is a super-2 number, since 2×42004763² = 3528800229372338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42004769) 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 in 3 ways as a sum of consecutive naturals, for example, 1105370 + ... + 1105407.

It is an arithmetic number, because the mean of its divisors is an integer number (11053890).

Almost surely, 2^42004763 is an apocalyptic number.

42004763 is a deficient number, since it is larger than the sum of its proper divisors (2210797).

42004763 is a wasteful number, since it uses less digits than its factorization.

42004763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210796.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 42004763 is about 6481.1081614181. The cubic root of 42004763 is about 347.6158039244.

Adding to 42004763 its reverse (36740024), we get a palindrome (78744787).

The spelling of 42004763 in words is "forty-two million, four thousand, seven hundred sixty-three".