420534895 has 12 divisors (see below), whose sum is σ = 554689800. Its totient is φ = 305843120.

The previous prime is 420534869. The next prime is 420534911. The reversal of 420534895 is 598435024.

It is not a de Polignac number, because 420534895 - 2⁷ = 420534767 is a prime.

It is a super-2 number, since 2×420534895² = 353699195825322050, which contains 22 as substring.

It is a congruent 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, 346945 + ... + 348154.

It is an arithmetic number, because the mean of its divisors is an integer number (46224150).

Almost surely, 2^420534895 is an apocalyptic number.

420534895 is a deficient number, since it is larger than the sum of its proper divisors (134154905).

420534895 is a wasteful number, since it uses less digits than its factorization.

420534895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695126 (or 695115 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 420534895 is about 20506.9474812806. The cubic root of 420534895 is about 749.2050213467.

The spelling of 420534895 in words is "four hundred twenty million, five hundred thirty-four thousand, eight hundred ninety-five".