420425924 has 18 divisors (see below), whose sum is σ = 769128990. Its totient is φ = 201072256.

The previous prime is 420425923. The next prime is 420425981. The reversal of 420425924 is 429524024.

It can be written as a sum of positive squares in only one way, i.e., 305550400 + 114875524 = 17480^2 + 10718^2 .

It is not an unprimeable number, because it can be changed into a prime (420425923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97229 + ... + 101460.

Almost surely, 2^420425924 is an apocalyptic number.

It is an amenable number.

420425924 is a deficient number, since it is larger than the sum of its proper divisors (348703066).

420425924 is a wasteful number, since it uses less digits than its factorization.

420425924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198739 (or 198714 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 420425924 is about 20504.2903803082. The cubic root of 420425924 is about 749.1403032348.

Adding to 420425924 its reverse (429524024), we get a palindrome (849949948).

The spelling of 420425924 in words is "four hundred twenty million, four hundred twenty-five thousand, nine hundred twenty-four".