1980954 has 24 divisors (see below), whose sum is σ = 4324320. Its totient is φ = 655368.

The previous prime is 1980949. The next prime is 1980983. The reversal of 1980954 is 4590891.

It is a plaindrome in base 11.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 2677 + ... + 3335.

It is an arithmetic number, because the mean of its divisors is an integer number (180180).

2^1980954 is an apocalyptic number.

1980954 is an abundant number, since it is smaller than the sum of its proper divisors (2343366).

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

1980954 is a wasteful number, since it uses less digits than its factorization.

1980954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 831 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1980954 is about 1407.4636762631. The cubic root of 1980954 is about 125.5908877455.

The spelling of 1980954 in words is "one million, nine hundred eighty thousand, nine hundred fifty-four".