42770263 has 4 divisors (see below), whose sum is σ = 42872760. Its totient is φ = 42667768.

The previous prime is 42770227. The next prime is 42770269. The reversal of 42770263 is 36207724.

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 42770263 - 2²⁵ = 9215831 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42770269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50620 + ... + 51457.

It is an arithmetic number, because the mean of its divisors is an integer number (10718190).

Almost surely, 2^42770263 is an apocalyptic number.

42770263 is a deficient number, since it is larger than the sum of its proper divisors (102497).

42770263 is a wasteful number, since it uses less digits than its factorization.

42770263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102496.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 42770263 is about 6539.8977820758. The cubic root of 42770263 is about 349.7147689759.

Adding to 42770263 its reverse (36207724), we get a palindrome (78977987).

The spelling of 42770263 in words is "forty-two million, seven hundred seventy thousand, two hundred sixty-three".