1980602 has 16 divisors (see below), whose sum is σ = 3388392. Its totient is φ = 860160.

The previous prime is 1980581. The next prime is 1980607. The reversal of 1980602 is 2060891.

It can be written as a sum of positive squares in 4 ways, for example, as 1819801 + 160801 = 1349^2 + 401^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1980607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1799 + ... + 2682.

2^1980602 is an apocalyptic number.

1980602 is a deficient number, since it is larger than the sum of its proper divisors (1407790).

1980602 is a wasteful number, since it uses less digits than its factorization.

1980602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4513.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1980602 is about 1407.3386230755. The cubic root of 1980602 is about 125.5834484660.

The spelling of 1980602 in words is "one million, nine hundred eighty thousand, six hundred two".