42017263 has 4 divisors (see below), whose sum is σ = 42729480. Its totient is φ = 41305048.

The previous prime is 42017257. The next prime is 42017273. The reversal of 42017263 is 36271024.

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 42017263 - 2⁵ = 42017231 is a prime.

It is a super-2 number, since 2×42017263² = 3530900780022338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42017203) 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, 356020 + ... + 356137.

It is an arithmetic number, because the mean of its divisors is an integer number (10682370).

Almost surely, 2^42017263 is an apocalyptic number.

42017263 is a deficient number, since it is larger than the sum of its proper divisors (712217).

42017263 is an equidigital number, since it uses as much as digits as its factorization.

42017263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712216.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 42017263 is about 6482.0724309437. The cubic root of 42017263 is about 347.6502822890.

Adding to 42017263 its reverse (36271024), we get a palindrome (78288287).

The spelling of 42017263 in words is "forty-two million, seventeen thousand, two hundred sixty-three".