420576523 has 8 divisors (see below), whose sum is σ = 427670496. Its totient is φ = 413515200.

The previous prime is 420576511. The next prime is 420576557. The reversal of 420576523 is 325675024.

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

It is a cyclic number.

It is not a de Polignac number, because 420576523 - 2⁵ = 420576491 is a prime.

It is a super-2 number, since 2×420576523² = 353769223397539058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420576323) 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, 18543 + ... + 34423.

It is an arithmetic number, because the mean of its divisors is an integer number (53458812).

Almost surely, 2^420576523 is an apocalyptic number.

420576523 is a deficient number, since it is larger than the sum of its proper divisors (7093973).

420576523 is a wasteful number, since it uses less digits than its factorization.

420576523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16325.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 420576523 is about 20507.9624292615. The cubic root of 420576523 is about 749.2297413545.

The spelling of 420576523 in words is "four hundred twenty million, five hundred seventy-six thousand, five hundred twenty-three".