1620030006 has 24 divisors (see below), whose sum is σ = 4011503184. Its totient is φ = 462865680.

The previous prime is 1620029989. The next prime is 1620030017. The reversal of 1620030006 is 6000300261.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6428565 + ... + 6428816.

It is an arithmetic number, because the mean of its divisors is an integer number (167145966).

Almost surely, 2^1620030006 is an apocalyptic number.

1620030006 is an abundant number, since it is smaller than the sum of its proper divisors (2391473178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1620030006 is a wasteful number, since it uses less digits than its factorization.

1620030006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12857396 (or 12857393 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1620030006 is about 40249.5963458020. The cubic root of 1620030006 is about 1174.4675435107.

Adding to 1620030006 its reverse (6000300261), we get a palindrome (7620330267).

The spelling of 1620030006 in words is "one billion, six hundred twenty million, thirty thousand, six".