424221002 has 4 divisors (see below), whose sum is σ = 636331506. Its totient is φ = 212110500.

The previous prime is 424220983. The next prime is 424221011. The reversal of 424221002 is 200122424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 416608921 + 7612081 = 20411^2 + 2759^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106055249 + ... + 106055252.

Almost surely, 2^424221002 is an apocalyptic number.

424221002 is a deficient number, since it is larger than the sum of its proper divisors (212110504).

424221002 is a wasteful number, since it uses less digits than its factorization.

424221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212110503.

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

The square root of 424221002 is about 20596.6259858259. The cubic root of 424221002 is about 751.3876543777.

Adding to 424221002 its reverse (200122424), we get a palindrome (624343426).

The spelling of 424221002 in words is "four hundred twenty-four million, two hundred twenty-one thousand, two".