420960505 has 8 divisors (see below), whose sum is σ = 577317312. Its totient is φ = 288658608.

The previous prime is 420960493. The next prime is 420960541. The reversal of 420960505 is 505069024.

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

It is not a de Polignac number, because 420960505 - 2⁵ = 420960473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6013687 + ... + 6013756.

It is an arithmetic number, because the mean of its divisors is an integer number (72164664).

Almost surely, 2^420960505 is an apocalyptic number.

It is an amenable number.

420960505 is a deficient number, since it is larger than the sum of its proper divisors (156356807).

420960505 is a wasteful number, since it uses less digits than its factorization.

420960505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12027455.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 420960505 is about 20517.3220718494. The cubic root of 420960505 is about 749.4576849908.

The spelling of 420960505 in words is "four hundred twenty million, nine hundred sixty thousand, five hundred five".