420245776 has 20 divisors (see below), whose sum is σ = 814596300. Its totient is φ = 210027392.

The previous prime is 420245747. The next prime is 420245779. The reversal of 420245776 is 677542024.

It can be written as a sum of positive squares in 2 ways, for example, as 402403600 + 17842176 = 20060^2 + 4224^2 .

It is not an unprimeable number, because it can be changed into a prime (420245779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42030 + ... + 51058.

It is an arithmetic number, because the mean of its divisors is an integer number (40729815).

Almost surely, 2^420245776 is an apocalyptic number.

It is an amenable number.

420245776 is a deficient number, since it is larger than the sum of its proper divisors (394350524).

420245776 is a wasteful number, since it uses less digits than its factorization.

420245776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11946 (or 11940 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 420245776 is about 20499.8969753509. The cubic root of 420245776 is about 749.0332884196.

The spelling of 420245776 in words is "four hundred twenty million, two hundred forty-five thousand, seven hundred seventy-six".