1980744 has 16 divisors (see below), whose sum is σ = 4951920. Its totient is φ = 660240.

The previous prime is 1980743. The next prime is 1980749. The reversal of 1980744 is 4470891.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1980743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41242 + ... + 41289.

It is an arithmetic number, because the mean of its divisors is an integer number (309495).

2^1980744 is an apocalyptic number.

It is an amenable number.

1980744 is an abundant number, since it is smaller than the sum of its proper divisors (2971176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1980744 is a wasteful number, since it uses less digits than its factorization.

1980744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82540 (or 82536 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1980744 is about 1407.3890720053. The cubic root of 1980744 is about 125.5864496450.

The spelling of 1980744 in words is "one million, nine hundred eighty thousand, seven hundred forty-four".