420575312 has 40 divisors (see below), whose sum is σ = 826534152. Its totient is φ = 207296000.

The previous prime is 420575293. The next prime is 420575333. The reversal of 420575312 is 213575024.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 35473936 + 385101376 = 5956^2 + 19624^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511862 + ... + 512682.

Almost surely, 2^420575312 is an apocalyptic number.

It is an amenable number.

420575312 is a deficient number, since it is larger than the sum of its proper divisors (405958840).

420575312 is a wasteful number, since it uses less digits than its factorization.

420575312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247 (or 1241 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 420575312 is about 20507.9329041227. The cubic root of 420575312 is about 749.2290222478.

The spelling of 420575312 in words is "four hundred twenty million, five hundred seventy-five thousand, three hundred twelve".