420425297 has 4 divisors (see below), whose sum is σ = 424507200. Its totient is φ = 416343396.

The previous prime is 420425287. The next prime is 420425311. The reversal of 420425297 is 792524024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420425297 - 2⁸ = 420425041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420425287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2040797 + ... + 2041002.

It is an arithmetic number, because the mean of its divisors is an integer number (106126800).

Almost surely, 2^420425297 is an apocalyptic number.

It is an amenable number.

420425297 is a deficient number, since it is larger than the sum of its proper divisors (4081903).

420425297 is a wasteful number, since it uses less digits than its factorization.

420425297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081902.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 420425297 is about 20504.2750908195. The cubic root of 420425297 is about 749.1399308258.

The spelling of 420425297 in words is "four hundred twenty million, four hundred twenty-five thousand, two hundred ninety-seven".