420065375 has 8 divisors (see below), whose sum is σ = 524241744. Its totient is φ = 336052200.

The previous prime is 420065369. The next prime is 420065381. The reversal of 420065375 is 573560024.

It is an interprime number because it is at equal distance from previous prime (420065369) and next prime (420065381).

It is not a de Polignac number, because 420065375 - 2⁶ = 420065311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1680137 + ... + 1680386.

It is an arithmetic number, because the mean of its divisors is an integer number (65530218).

Almost surely, 2^420065375 is an apocalyptic number.

420065375 is a deficient number, since it is larger than the sum of its proper divisors (104176369).

420065375 is an equidigital number, since it uses as much as digits as its factorization.

420065375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360538 (or 3360528 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 420065375 is about 20495.4964565389. The cubic root of 420065375 is about 748.9260926609.

The spelling of 420065375 in words is "four hundred twenty million, sixty-five thousand, three hundred seventy-five".