420002395 has 8 divisors (see below), whose sum is σ = 504335520. Its totient is φ = 335780160.

The previous prime is 420002381. The next prime is 420002411. The reversal of 420002395 is 593200024.

It is a happy number.

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

It is not a de Polignac number, because 420002395 - 2⁷ = 420002267 is a prime.

It is a super-3 number, since 3×420002395³ (a number of 27 digits) contains 333 as substring.

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, 19146 + ... + 34735.

It is an arithmetic number, because the mean of its divisors is an integer number (63041940).

Almost surely, 2^420002395 is an apocalyptic number.

420002395 is a deficient number, since it is larger than the sum of its proper divisors (84333125).

420002395 is a wasteful number, since it uses less digits than its factorization.

420002395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55445.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 420002395 is about 20493.9599638528. The cubic root of 420002395 is about 748.8886621993. Note that the first 3 decimals are identical.

The spelling of 420002395 in words is "four hundred twenty million, two thousand, three hundred ninety-five".