421252064 has 12 divisors (see below), whose sum is σ = 829340064. Its totient is φ = 210626016.

The previous prime is 421252063. The next prime is 421252093. The reversal of 421252064 is 460252124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421252063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6582032 + ... + 6582095.

It is an arithmetic number, because the mean of its divisors is an integer number (69111672).

Almost surely, 2^421252064 is an apocalyptic number.

It is an amenable number.

421252064 is a deficient number, since it is larger than the sum of its proper divisors (408088000).

421252064 is a wasteful number, since it uses less digits than its factorization.

421252064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13164137 (or 13164129 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 421252064 is about 20524.4260333876. The cubic root of 421252064 is about 749.6306708986.

The spelling of 421252064 in words is "four hundred twenty-one million, two hundred fifty-two thousand, sixty-four".