420991295 has 4 divisors (see below), whose sum is σ = 505189560. Its totient is φ = 336793032.

The previous prime is 420991283. The next prime is 420991301. The reversal of 420991295 is 592199024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420991295 - 2⁴ = 420991279 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42099125 + ... + 42099134.

It is an arithmetic number, because the mean of its divisors is an integer number (126297390).

Almost surely, 2^420991295 is an apocalyptic number.

420991295 is a deficient number, since it is larger than the sum of its proper divisors (84198265).

420991295 is an equidigital number, since it uses as much as digits as its factorization.

420991295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84198264.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 420991295 is about 20518.0723997163. The cubic root of 420991295 is about 749.4759568867.

The spelling of 420991295 in words is "four hundred twenty million, nine hundred ninety-one thousand, two hundred ninety-five".