422649853 has 8 divisors (see below), whose sum is σ = 444661560. Its totient is φ = 401195520.

The previous prime is 422649833. The next prime is 422649883. The reversal of 422649853 is 358946224.

It can be written as a sum of positive squares in 4 ways, for example, as 71199844 + 351450009 = 8438^2 + 18747^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422649853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422649823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137788 + ... + 140821.

It is an arithmetic number, because the mean of its divisors is an integer number (55582695).

Almost surely, 2^422649853 is an apocalyptic number.

It is an amenable number.

422649853 is a deficient number, since it is larger than the sum of its proper divisors (22011707).

422649853 is a wasteful number, since it uses less digits than its factorization.

422649853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278687.

The product of its digits is 414720, while the sum is 43.

The square root of 422649853 is about 20558.4496740391. The cubic root of 422649853 is about 750.4588913159.

The spelling of 422649853 in words is "four hundred twenty-two million, six hundred forty-nine thousand, eight hundred fifty-three".