620630441 has 8 divisors (see below), whose sum is σ = 671120640. Its totient is φ = 571693888.

The previous prime is 620630431. The next prime is 620630467. The reversal of 620630441 is 144036026.

620630441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 620630441 - 2⁶ = 620630377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 620630441.

It is not an unprimeable number, because it can be changed into a prime (620630401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387581 + ... + 389178.

It is an arithmetic number, because the mean of its divisors is an integer number (83890080).

Almost surely, 2^620630441 is an apocalyptic number.

It is an amenable number.

620630441 is a deficient number, since it is larger than the sum of its proper divisors (50490199).

620630441 is a wasteful number, since it uses less digits than its factorization.

620630441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776823.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 620630441 is about 24912.4555393482. The cubic root of 620630441 is about 852.9908209787.

Adding to 620630441 its reverse (144036026), we get a palindrome (764666467).

The spelling of 620630441 in words is "six hundred twenty million, six hundred thirty thousand, four hundred forty-one".