420464025 has 36 divisors (see below), whose sum is σ = 760451328. Its totient is φ = 222058080.

The previous prime is 420464017. The next prime is 420464027. The reversal of 420464025 is 520464024.

It is not a de Polignac number, because 420464025 - 2³ = 420464017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420464025.

It is not an unprimeable number, because it can be changed into a prime (420464027) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14104 + ... + 32246.

It is an arithmetic number, because the mean of its divisors is an integer number (21123648).

Almost surely, 2^420464025 is an apocalyptic number.

420464025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

420464025 is a deficient number, since it is larger than the sum of its proper divisors (339987303).

420464025 is a wasteful number, since it uses less digits than its factorization.

420464025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18262 (or 18254 counting only the distinct ones).

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

The square root of 420464025 is about 20505.2194574942. The cubic root of 420464025 is about 749.1629327722.

Subtracting 420464025 from its reverse (520464024), we obtain a palindrome (99999999).

The spelling of 420464025 in words is "four hundred twenty million, four hundred sixty-four thousand, twenty-five".