621422265 has 32 divisors (see below), whose sum is σ = 1049241600. Its totient is φ = 313191360.

The previous prime is 621422251. The next prime is 621422287. The reversal of 621422265 is 562224126.

It is a happy number.

It is not a de Polignac number, because 621422265 - 2⁶ = 621422201 is a prime.

It is a Curzon number.

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 in 31 ways as a sum of consecutive naturals, for example, 120306 + ... + 125364.

It is an arithmetic number, because the mean of its divisors is an integer number (32788800).

Almost surely, 2^621422265 is an apocalyptic number.

It is an amenable number.

621422265 is a deficient number, since it is larger than the sum of its proper divisors (427819335).

621422265 is a wasteful number, since it uses less digits than its factorization.

621422265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5517.

The product of its digits is 11520, while the sum is 30.

The square root of 621422265 is about 24928.3426043530. The cubic root of 621422265 is about 853.3534262270.

The spelling of 621422265 in words is "six hundred twenty-one million, four hundred twenty-two thousand, two hundred sixty-five".