421234250 has 16 divisors (see below), whose sum is σ = 788550984. Its totient is φ = 168493600.

The previous prime is 421234249. The next prime is 421234349. The reversal of 421234250 is 52432124.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 182871529 + 238362721 = 13523^2 + 15439^2 .

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 7 ways as a sum of consecutive naturals, for example, 842219 + ... + 842718.

Almost surely, 2^421234250 is an apocalyptic number.

421234250 is a deficient number, since it is larger than the sum of its proper divisors (367316734).

421234250 is a wasteful number, since it uses less digits than its factorization.

421234250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684954 (or 1684944 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 421234250 is about 20523.9920580768. The cubic root of 421234250 is about 749.6201039007.

Adding to 421234250 its reverse (52432124), we get a palindrome (473666374).

The spelling of 421234250 in words is "four hundred twenty-one million, two hundred thirty-four thousand, two hundred fifty".