620407630 has 8 divisors (see below), whose sum is σ = 1116733752. Its totient is φ = 248163048.

The previous prime is 620407621. The next prime is 620407633. The reversal of 620407630 is 36704026.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620407633) 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, 31020372 + ... + 31020391.

It is an arithmetic number, because the mean of its divisors is an integer number (139591719).

Almost surely, 2^620407630 is an apocalyptic number.

620407630 is a deficient number, since it is larger than the sum of its proper divisors (496326122).

620407630 is a wasteful number, since it uses less digits than its factorization.

620407630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62040770.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 620407630 is about 24907.9832583853. The cubic root of 620407630 is about 852.8887320523. Note that the first 3 decimals are identical.

The spelling of 620407630 in words is "six hundred twenty million, four hundred seven thousand, six hundred thirty".