1980362 has 4 divisors (see below), whose sum is σ = 2970546. Its totient is φ = 990180.

The previous prime is 1980361. The next prime is 1980367. The reversal of 1980362 is 2630891.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1168561 + 811801 = 1081^2 + 901^2 .

It is a super-4 number, since 4×1980362⁴ (a number of 26 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1980361) by changing a digit.

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 as a sum of consecutive naturals, namely, 495089 + ... + 495092.

2^1980362 is an apocalyptic number.

1980362 is a deficient number, since it is larger than the sum of its proper divisors (990184).

1980362 is an equidigital number, since it uses as much as digits as its factorization.

1980362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990183.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1980362 is about 1407.2533531671. The cubic root of 1980362 is about 125.5783757247.

It can be divided in two parts, 19 and 80362, that multiplied together give a triangular number (1526878 = T₁₇₄₇).

The spelling of 1980362 in words is "one million, nine hundred eighty thousand, three hundred sixty-two".