42202623 has 4 divisors (see below), whose sum is σ = 56270168. Its totient is φ = 28135080.

The previous prime is 42202621. The next prime is 42202649. The reversal of 42202623 is 32620224.

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

It is not a de Polignac number, because 42202623 - 2¹ = 42202621 is a prime.

It is a super-2 number, since 2×42202623² = 3562122776160258, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 42202623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42202621) 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, 7033768 + ... + 7033773.

It is an arithmetic number, because the mean of its divisors is an integer number (14067542).

Almost surely, 2^42202623 is an apocalyptic number.

42202623 is a deficient number, since it is larger than the sum of its proper divisors (14067545).

42202623 is a wasteful number, since it uses less digits than its factorization.

42202623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14067544.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 42202623 is about 6496.3545931545. The cubic root of 42202623 is about 348.1607544392.

Adding to 42202623 its reverse (32620224), we get a palindrome (74822847).

The spelling of 42202623 in words is "forty-two million, two hundred two thousand, six hundred twenty-three".