421025002 has 8 divisors (see below), whose sum is σ = 638633700. Its totient is φ = 208147104.

The previous prime is 421024999. The next prime is 421025039. The reversal of 421025002 is 200520124.

It can be written as a sum of positive squares in 2 ways, for example, as 405176641 + 15848361 = 20129^2 + 3981^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 1182477 + ... + 1182832.

Almost surely, 2^421025002 is an apocalyptic number.

421025002 is a deficient number, since it is larger than the sum of its proper divisors (217608698).

421025002 is a wasteful number, since it uses less digits than its factorization.

421025002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365400.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 421025002 is about 20518.8937810984. The cubic root of 421025002 is about 749.4959588140.

Adding to 421025002 its reverse (200520124), we get a palindrome (621545126).

The spelling of 421025002 in words is "four hundred twenty-one million, twenty-five thousand, two".