422665245 has 24 divisors (see below), whose sum is σ = 752423256. Its totient is φ = 219328128.

The previous prime is 422665211. The next prime is 422665261. The reversal of 422665245 is 542566224.

It can be written as a sum of positive squares in 4 ways, for example, as 241305156 + 181360089 = 15534^2 + 13467^2 .

It is not a de Polignac number, because 422665245 - 2⁸ = 422664989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125262 + ... + 128591.

It is an arithmetic number, because the mean of its divisors is an integer number (31350969).

Almost surely, 2^422665245 is an apocalyptic number.

422665245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

422665245 is a deficient number, since it is larger than the sum of its proper divisors (329758011).

422665245 is a wasteful number, since it uses less digits than its factorization.

422665245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253901 (or 253898 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 422665245 is about 20558.8240179248. The cubic root of 422665245 is about 750.4680012390.

The spelling of 422665245 in words is "four hundred twenty-two million, six hundred sixty-five thousand, two hundred forty-five".