1620000002 has 16 divisors (see below), whose sum is σ = 2569378560. Its totient is φ = 763923312.

The previous prime is 1619999987. The next prime is 1620000029. The reversal of 1620000002 is 2000000261.

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 7 ways as a sum of consecutive naturals, for example, 87113 + ... + 104060.

It is an arithmetic number, because the mean of its divisors is an integer number (160586160).

Almost surely, 2^1620000002 is an apocalyptic number.

1620000002 is a deficient number, since it is larger than the sum of its proper divisors (949378558).

1620000002 is a wasteful number, since it uses less digits than its factorization.

1620000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191417.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1620000002 is about 40249.2236198414. The cubic root of 1620000002 is about 1174.4602928340.

Adding to 1620000002 its reverse (2000000261), we get a palindrome (3620000263).

It can be divided in two parts, 162000000 and 2, that multiplied together give a square (324000000 = 18000²).

The spelling of 1620000002 in words is "one billion, six hundred twenty million, two", and thus it is an aban number.