420771144 has 32 divisors (see below), whose sum is σ = 1053720000. Its totient is φ = 140018112.

The previous prime is 420771133. The next prime is 420771149. The reversal of 420771144 is 441177024.

It is not an unprimeable number, because it can be changed into a prime (420771149) 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, 259 + ... + 29010.

It is an arithmetic number, because the mean of its divisors is an integer number (32928750).

Almost surely, 2^420771144 is an apocalyptic number.

It is an amenable number.

420771144 is an abundant number, since it is smaller than the sum of its proper divisors (632948856).

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

420771144 is a wasteful number, since it uses less digits than its factorization.

420771144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29877 (or 29873 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 420771144 is about 20512.7068910956. The cubic root of 420771144 is about 749.3452917536.

The spelling of 420771144 in words is "four hundred twenty million, seven hundred seventy-one thousand, one hundred forty-four".