1980232 has 8 divisors (see below), whose sum is σ = 3712950. Its totient is φ = 990112.

The previous prime is 1980229. The next prime is 1980233. The reversal of 1980232 is 2320891.

It can be written as a sum of positive squares in only one way, i.e., 1552516 + 427716 = 1246^2 + 654^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1980197 and 1980206.

It is not an unprimeable number, because it can be changed into a prime (1980233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123757 + ... + 123772.

2^1980232 is an apocalyptic number.

It is an amenable number.

1980232 is a deficient number, since it is larger than the sum of its proper divisors (1732718).

1980232 is a wasteful number, since it uses less digits than its factorization.

1980232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247535 (or 247531 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1980232 is about 1407.2071631427. The cubic root of 1980232 is about 125.5756278186.

It can be divided in two parts, 198023 and 2, that added together give a square (198025 = 445²).

The spelling of 1980232 in words is "one million, nine hundred eighty thousand, two hundred thirty-two".