420171044 has 12 divisors (see below), whose sum is σ = 735443100. Its totient is φ = 210044448.

The previous prime is 420171043. The next prime is 420171077. The reversal of 420171044 is 440171024.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 292752100 + 127418944 = 17110^2 + 11288^2 .

It is not an unprimeable number, because it can be changed into a prime (420171043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33062 + ... + 43970.

It is an arithmetic number, because the mean of its divisors is an integer number (61286925).

Almost surely, 2^420171044 is an apocalyptic number.

It is an amenable number.

420171044 is a deficient number, since it is larger than the sum of its proper divisors (315272056).

420171044 is a wasteful number, since it uses less digits than its factorization.

420171044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20542 (or 20540 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 420171044 is about 20498.0741534418. The cubic root of 420171044 is about 748.9888857729.

The spelling of 420171044 in words is "four hundred twenty million, one hundred seventy-one thousand, forty-four".