422338645 has 8 divisors (see below), whose sum is σ = 507470040. Its totient is φ = 337428480.

The previous prime is 422338643. The next prime is 422338649. The reversal of 422338645 is 546833224.

It can be written as a sum of positive squares in 4 ways, for example, as 111133764 + 311204881 = 10542^2 + 17641^2 .

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

It is not a de Polignac number, because 422338645 - 2¹ = 422338643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422338643) 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, 51076 + ... + 58765.

It is an arithmetic number, because the mean of its divisors is an integer number (63433755).

Almost surely, 2^422338645 is an apocalyptic number.

It is an amenable number.

422338645 is a deficient number, since it is larger than the sum of its proper divisors (85131395).

422338645 is a wasteful number, since it uses less digits than its factorization.

422338645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110615.

The product of its digits is 138240, while the sum is 37.

The square root of 422338645 is about 20550.8794215722. The cubic root of 422338645 is about 750.2746520020.

The spelling of 422338645 in words is "four hundred twenty-two million, three hundred thirty-eight thousand, six hundred forty-five".