420829064 has 16 divisors (see below), whose sum is σ = 802429200. Its totient is φ = 206847952.

The previous prime is 420829037. The next prime is 420829069. The reversal of 420829064 is 460928024.

It is a super-2 number, since 2×420829064² = 354194202214232192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420829069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445322 + ... + 446265.

It is an arithmetic number, because the mean of its divisors is an integer number (50151825).

Almost surely, 2^420829064 is an apocalyptic number.

It is an amenable number.

420829064 is a deficient number, since it is larger than the sum of its proper divisors (381600136).

420829064 is a wasteful number, since it uses less digits than its factorization.

420829064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891652 (or 891648 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 420829064 is about 20514.1186503345. The cubic root of 420829064 is about 749.3796731416.

The spelling of 420829064 in words is "four hundred twenty million, eight hundred twenty-nine thousand, sixty-four".