421224002 has 8 divisors (see below), whose sum is σ = 631953036. Its totient is φ = 210572992.

The previous prime is 421223989. The next prime is 421224007. The reversal of 421224002 is 200422124.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 311204881 + 110019121 = 17641^2 + 10489^2 .

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

It is not an unprimeable number, because it can be changed into a prime (421224007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3323 + ... + 29214.

Almost surely, 2^421224002 is an apocalyptic number.

421224002 is a deficient number, since it is larger than the sum of its proper divisors (210729034).

421224002 is a wasteful number, since it uses less digits than its factorization.

421224002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39012.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 421224002 is about 20523.7423975258. The cubic root of 421224002 is about 749.6140248057.

Adding to 421224002 its reverse (200422124), we get a palindrome (621646126).

The spelling of 421224002 in words is "four hundred twenty-one million, two hundred twenty-four thousand, two".