621466130 has 16 divisors (see below), whose sum is σ = 1129716504. Its totient is φ = 246124800.

The previous prime is 621466129. The next prime is 621466159. The reversal of 621466130 is 31664126.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 587044441 + 34421689 = 24229^2 + 5867^2 .

It is a junction number, because it is equal to n+sod(n) for n = 621466093 and 621466102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306647 + ... + 308666.

Almost surely, 2^621466130 is an apocalyptic number.

621466130 is a deficient number, since it is larger than the sum of its proper divisors (508250374).

621466130 is a wasteful number, since it uses less digits than its factorization.

621466130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615421.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 621466130 is about 24929.2224106569. Note that the first 3 decimals coincide. The cubic root of 621466130 is about 853.3735046125.

The spelling of 621466130 in words is "six hundred twenty-one million, four hundred sixty-six thousand, one hundred thirty".