420017470 has 16 divisors (see below), whose sum is σ = 800504208. Its totient is φ = 158124160.

The previous prime is 420017447. The next prime is 420017471. The reversal of 420017470 is 74710024.

420017470 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420017471) 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, 1235176 + ... + 1235515.

It is an arithmetic number, because the mean of its divisors is an integer number (50031513).

Almost surely, 2^420017470 is an apocalyptic number.

420017470 is a deficient number, since it is larger than the sum of its proper divisors (380486738).

420017470 is a wasteful number, since it uses less digits than its factorization.

420017470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470715.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 420017470 is about 20494.3277518439. The cubic root of 420017470 is about 748.8976219589.

Adding to 420017470 its reverse (74710024), we get a palindrome (494727494).

The spelling of 420017470 in words is "four hundred twenty million, seventeen thousand, four hundred seventy".