1620602630 has 8 divisors (see below), whose sum is σ = 2917084752. Its totient is φ = 648241048.

The previous prime is 1620602617. The next prime is 1620602657. The reversal of 1620602630 is 362060261.

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 1620602630.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 81030122 + ... + 81030141.

It is an arithmetic number, because the mean of its divisors is an integer number (364635594).

Almost surely, 2^1620602630 is an apocalyptic number.

1620602630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1620602630 is a deficient number, since it is larger than the sum of its proper divisors (1296482122).

1620602630 is a wasteful number, since it uses less digits than its factorization.

1620602630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162060270.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1620602630 is about 40256.7091302804. The cubic root of 1620602630 is about 1174.6059049562.

Adding to 1620602630 its reverse (362060261), we get a palindrome (1982662891).

The spelling of 1620602630 in words is "one billion, six hundred twenty million, six hundred two thousand, six hundred thirty".