1980464 has 20 divisors (see below), whose sum is σ = 3932040. Its totient is φ = 965760.

The previous prime is 1980443. The next prime is 1980469. The reversal of 1980464 is 4640891.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1980464.

It is not an unprimeable number, because it can be changed into a prime (1980469) 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, 854 + ... + 2165.

It is an arithmetic number, because the mean of its divisors is an integer number (196602).

2^1980464 is an apocalyptic number.

It is an amenable number.

1980464 is a deficient number, since it is larger than the sum of its proper divisors (1951576).

1980464 is a wasteful number, since it uses less digits than its factorization.

1980464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068 (or 3062 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1980464 is about 1407.2895935095. The cubic root of 1980464 is about 125.5805316898.

The spelling of 1980464 in words is "one million, nine hundred eighty thousand, four hundred sixty-four".