420480392 has 16 divisors (see below), whose sum is σ = 788973900. Its totient is φ = 210087360.

The previous prime is 420480391. The next prime is 420480439. The reversal of 420480392 is 293084024.

It can be written as a sum of positive squares in 2 ways, for example, as 281098756 + 139381636 = 16766^2 + 11806^2 .

It is not an unprimeable number, because it can be changed into a prime (420480391) 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, 6959 + ... + 29822.

Almost surely, 2^420480392 is an apocalyptic number.

It is an amenable number.

420480392 is a deficient number, since it is larger than the sum of its proper divisors (368493508).

420480392 is a wasteful number, since it uses less digits than its factorization.

420480392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38216 (or 38212 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 420480392 is about 20505.6185471202. The cubic root of 420480392 is about 749.1726532951.

The spelling of 420480392 in words is "four hundred twenty million, four hundred eighty thousand, three hundred ninety-two".