642226485 has 8 divisors (see below), whose sum is σ = 1027562400. Its totient is φ = 342520784.

The previous prime is 642226463. The next prime is 642226499. The reversal of 642226485 is 584622246.

642226485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 642226485 - 2¹⁰ = 642225461 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21407535 + ... + 21407564.

It is an arithmetic number, because the mean of its divisors is an integer number (128445300).

Almost surely, 2^642226485 is an apocalyptic number.

It is an amenable number.

642226485 is a deficient number, since it is larger than the sum of its proper divisors (385335915).

642226485 is a wasteful number, since it uses less digits than its factorization.

642226485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42815107.

The product of its digits is 184320, while the sum is 39.

The square root of 642226485 is about 25342.1878495129. The cubic root of 642226485 is about 862.7720561640.

It can be divided in two parts, 64222 and 6485, that added together give a palindrome (70707).

The spelling of 642226485 in words is "six hundred forty-two million, two hundred twenty-six thousand, four hundred eighty-five".