420818573 has 8 divisors (see below), whose sum is σ = 481065792. Its totient is φ = 360603936.

The previous prime is 420818537. The next prime is 420818579. The reversal of 420818573 is 375818024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420818573 - 2⁶ = 420818509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420818579) 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, 34286 + ... + 44912.

It is an arithmetic number, because the mean of its divisors is an integer number (60133224).

Almost surely, 2^420818573 is an apocalyptic number.

It is an amenable number.

420818573 is a deficient number, since it is larger than the sum of its proper divisors (60247219).

420818573 is a wasteful number, since it uses less digits than its factorization.

420818573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16291.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 420818573 is about 20513.8629467977. The cubic root of 420818573 is about 749.3734459042.

The spelling of 420818573 in words is "four hundred twenty million, eight hundred eighteen thousand, five hundred seventy-three".