420459328 has 14 divisors (see below), whose sum is σ = 834349106. Its totient is φ = 210229632.

The previous prime is 420459301. The next prime is 420459331. The reversal of 420459328 is 823954024.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 223562304 + 196897024 = 14952^2 + 14032^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3284775 + ... + 3284902.

Almost surely, 2^420459328 is an apocalyptic number.

It is an amenable number.

420459328 is a deficient number, since it is larger than the sum of its proper divisors (413889778).

420459328 is an equidigital number, since it uses as much as digits as its factorization.

420459328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6569689 (or 6569679 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 420459328 is about 20505.1049253594. The cubic root of 420459328 is about 749.1601431309.

The spelling of 420459328 in words is "four hundred twenty million, four hundred fifty-nine thousand, three hundred twenty-eight".