420581268 has 48 divisors (see below), whose sum is σ = 1092490560. Its totient is φ = 139924512.

The previous prime is 420581221. The next prime is 420581279. The reversal of 420581268 is 862185024.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 57346 + ... + 64262.

It is an arithmetic number, because the mean of its divisors is an integer number (22760220).

Almost surely, 2^420581268 is an apocalyptic number.

It is an amenable number.

420581268 is an abundant number, since it is smaller than the sum of its proper divisors (671909292).

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

420581268 is a wasteful number, since it uses less digits than its factorization.

420581268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7493 (or 7485 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 420581268 is about 20508.0781157085. The cubic root of 420581268 is about 749.2325589802.

The spelling of 420581268 in words is "four hundred twenty million, five hundred eighty-one thousand, two hundred sixty-eight".