620432630 has 8 divisors (see below), whose sum is σ = 1116778752. Its totient is φ = 248173048.

The previous prime is 620432599. The next prime is 620432639. The reversal of 620432630 is 36234026.

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

It is a self number, because there is not a number n which added to its sum of digits gives 620432630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620432639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31021622 + ... + 31021641.

It is an arithmetic number, because the mean of its divisors is an integer number (139597344).

Almost surely, 2^620432630 is an apocalyptic number.

620432630 is a deficient number, since it is larger than the sum of its proper divisors (496346122).

620432630 is a wasteful number, since it uses less digits than its factorization.

620432630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62043270.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 620432630 is about 24908.4851004633. The cubic root of 620432630 is about 852.9001879247.

Adding to 620432630 its reverse (36234026), we get a palindrome (656666656).

The spelling of 620432630 in words is "six hundred twenty million, four hundred thirty-two thousand, six hundred thirty".