420343025 has 12 divisors (see below), whose sum is σ = 522634332. Its totient is φ = 335365440.

The previous prime is 420343019. The next prime is 420343039. The reversal of 420343025 is 520343024.

420343025 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 2917264 + 417425761 = 1708^2 + 20431^2 .

It is not a de Polignac number, because 420343025 - 2²⁴ = 403565809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13214 + ... + 31863.

It is an arithmetic number, because the mean of its divisors is an integer number (43552861).

Almost surely, 2^420343025 is an apocalyptic number.

It is an amenable number.

420343025 is a deficient number, since it is larger than the sum of its proper divisors (102291307).

420343025 is a wasteful number, since it uses less digits than its factorization.

420343025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45460 (or 45455 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 420343025 is about 20502.2687768939. The cubic root of 420343025 is about 749.0910618499.

Adding to 420343025 its reverse (520343024), we get a palindrome (940686049).

Subtracting 420343025 from its reverse (520343024), we obtain a palindrome (99999999).

The spelling of 420343025 in words is "four hundred twenty million, three hundred forty-three thousand, twenty-five".