1980329602 has 16 divisors (see below), whose sum is σ = 3047986872. Its totient is φ = 964414080.

The previous prime is 1980329599. The next prime is 1980329621. The reversal of 1980329602 is 2069230891.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 723556201 + 1256773401 = 26899^2 + 35451^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30568 + ... + 69964.

Almost surely, 2^1980329602 is an apocalyptic number.

1980329602 is a deficient number, since it is larger than the sum of its proper divisors (1067657270).

1980329602 is a wasteful number, since it uses less digits than its factorization.

1980329602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40053.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 1980329602 is about 44500.8943955063. The cubic root of 1980329602 is about 1255.7769091544.

The spelling of 1980329602 in words is "one billion, nine hundred eighty million, three hundred twenty-nine thousand, six hundred two".