420415265 has 8 divisors (see below), whose sum is σ = 504620928. Its totient is φ = 336250480.

The previous prime is 420415243. The next prime is 420415267. The reversal of 420415265 is 562514024.

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

It is not a de Polignac number, because 420415265 - 2¹⁶ = 420349729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420415267) 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, 21194 + ... + 35916.

It is an arithmetic number, because the mean of its divisors is an integer number (63077616).

Almost surely, 2^420415265 is an apocalyptic number.

It is an amenable number.

420415265 is a deficient number, since it is larger than the sum of its proper divisors (84205663).

420415265 is a wasteful number, since it uses less digits than its factorization.

420415265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20439.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 420415265 is about 20504.0304574491. The cubic root of 420415265 is about 749.1339722313.

Adding to 420415265 its reverse (562514024), we get a palindrome (982929289).

The spelling of 420415265 in words is "four hundred twenty million, four hundred fifteen thousand, two hundred sixty-five".