621622010 has 16 divisors (see below), whose sum is σ = 1134248616. Its totient is φ = 245242368.

The previous prime is 621622009. The next prime is 621622049. The reversal of 621622010 is 10226126.

It is a happy number.

621622010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 291145969 + 330476041 = 17063^2 + 18179^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425039 + ... + 426498.

Almost surely, 2^621622010 is an apocalyptic number.

621622010 is a deficient number, since it is larger than the sum of its proper divisors (512626606).

621622010 is a wasteful number, since it uses less digits than its factorization.

621622010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851617.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 621622010 is about 24932.3486659400. The cubic root of 621622010 is about 853.4448481313. Note that the first 3 decimals are identical.

Adding to 621622010 its reverse (10226126), we get a palindrome (631848136).

The spelling of 621622010 in words is "six hundred twenty-one million, six hundred twenty-two thousand, ten".