406620002 has 4 divisors (see below), whose sum is σ = 609930006. Its totient is φ = 203310000.

The previous prime is 406619981. The next prime is 406620061. The reversal of 406620002 is 200026604.

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., 212547241 + 194072761 = 14579^2 + 13931^2 .

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 as a sum of consecutive naturals, namely, 101654999 + ... + 101655002.

Almost surely, 2^406620002 is an apocalyptic number.

406620002 is a deficient number, since it is larger than the sum of its proper divisors (203310004).

406620002 is a wasteful number, since it uses less digits than its factorization.

406620002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203310003.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 406620002 is about 20164.8209017586. The cubic root of 406620002 is about 740.8487959456.

Adding to 406620002 its reverse (200026604), we get a palindrome (606646606).

The spelling of 406620002 in words is "four hundred six million, six hundred twenty thousand, two".