420788750 has 20 divisors (see below), whose sum is σ = 788728776. Its totient is φ = 168315000.

The previous prime is 420788747. The next prime is 420788759. The reversal of 420788750 is 57887024.

It is a junction number, because it is equal to n+sod(n) for n = 420788698 and 420788707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420788759) by changing a digit.

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 in 9 ways as a sum of consecutive naturals, for example, 167066 + ... + 169565.

Almost surely, 2^420788750 is an apocalyptic number.

420788750 is a deficient number, since it is larger than the sum of its proper divisors (367940026).

420788750 is an equidigital number, since it uses as much as digits as its factorization.

420788750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336653 (or 336638 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 420788750 is about 20513.1360352336. The cubic root of 420788750 is about 749.3557430320.

The spelling of 420788750 in words is "four hundred twenty million, seven hundred eighty-eight thousand, seven hundred fifty".