420004036 has 9 divisors (see below), whose sum is σ = 735078799. Its totient is φ = 209981524.

The previous prime is 420004033. The next prime is 420004043. The reversal of 420004036 is 630400024.

The square root of 420004036 is 20494.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420004033) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 35865 + ... + 46111.

Almost surely, 2^420004036 is an apocalyptic number.

420004036 is the 20494-th square number.

It is an amenable number.

420004036 is a deficient number, since it is larger than the sum of its proper divisors (315074763).

420004036 is an frugal number, since it uses more digits than its factorization.

420004036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20498 (or 10249 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The cubic root of 420004036 is about 748.8896375308.

Multiplying 420004036 by its product of nonzero digits (576), we get a square (241922324736 = 491856²).

The spelling of 420004036 in words is "four hundred twenty million, four thousand, thirty-six".