422420265 has 24 divisors (see below), whose sum is σ = 759315648. Its totient is φ = 225290160.

The previous prime is 422420263. The next prime is 422420269. The reversal of 422420265 is 562024224.

It is a happy number.

It is not a de Polignac number, because 422420265 - 2¹ = 422420263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (422420263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172621 + ... + 175050.

It is an arithmetic number, because the mean of its divisors is an integer number (31638152).

Almost surely, 2^422420265 is an apocalyptic number.

422420265 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

422420265 is a deficient number, since it is larger than the sum of its proper divisors (336895383).

422420265 is an equidigital number, since it uses as much as digits as its factorization.

422420265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347691 (or 347679 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 422420265 is about 20552.8651287357. The cubic root of 422420265 is about 750.3229808912.

Adding to 422420265 its reverse (562024224), we get a palindrome (984444489).

The spelling of 422420265 in words is "four hundred twenty-two million, four hundred twenty thousand, two hundred sixty-five".