420727764 has 24 divisors (see below), whose sum is σ = 1039445568. Its totient is φ = 131992960.

The previous prime is 420727763. The next prime is 420727787. The reversal of 420727764 is 467727024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420727763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1030992 + ... + 1031399.

It is an arithmetic number, because the mean of its divisors is an integer number (43310232).

Almost surely, 2^420727764 is an apocalyptic number.

It is an amenable number.

420727764 is an abundant number, since it is smaller than the sum of its proper divisors (618717804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420727764 is a wasteful number, since it uses less digits than its factorization.

420727764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062415 (or 2062413 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 39.

The square root of 420727764 is about 20511.6494704838. The cubic root of 420727764 is about 749.3195392621.

The spelling of 420727764 in words is "four hundred twenty million, seven hundred twenty-seven thousand, seven hundred sixty-four".