420537966 has 8 divisors (see below), whose sum is σ = 841075944. Its totient is φ = 140179320.

The previous prime is 420537941. The next prime is 420537973. The reversal of 420537966 is 669735024.

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

420537966 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35044825 + ... + 35044836.

It is an arithmetic number, because the mean of its divisors is an integer number (105134493).

Almost surely, 2^420537966 is an apocalyptic number.

420537966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420537966 is a wasteful number, since it uses less digits than its factorization.

420537966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70089666.

The product of its (nonzero) digits is 272160, while the sum is 42.

The square root of 420537966 is about 20507.0223582070. The cubic root of 420537966 is about 749.2068450582.

The spelling of 420537966 in words is "four hundred twenty million, five hundred thirty-seven thousand, nine hundred sixty-six".