420005365 has 16 divisors (see below), whose sum is σ = 551980800. Its totient is φ = 304898112.

The previous prime is 420005363. The next prime is 420005387. The reversal of 420005365 is 563500024.

It is a cyclic number.

It is not a de Polignac number, because 420005365 - 2¹ = 420005363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420005363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50925 + ... + 58594.

It is an arithmetic number, because the mean of its divisors is an integer number (34498800).

Almost surely, 2^420005365 is an apocalyptic number.

It is an amenable number.

420005365 is a deficient number, since it is larger than the sum of its proper divisors (131975435).

420005365 is a wasteful number, since it uses less digits than its factorization.

420005365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109596.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 420005365 is about 20494.0324240985. The cubic root of 420005365 is about 748.8904274226.

Adding to 420005365 its reverse (563500024), we get a palindrome (983505389).

The spelling of 420005365 in words is "four hundred twenty million, five thousand, three hundred sixty-five".