1982550 has 24 divisors (see below), whose sum is σ = 4917096. Its totient is φ = 528640.

The previous prime is 1982537. The next prime is 1982551. The reversal of 1982550 is 552891.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6459 + ... + 6758.

It is an arithmetic number, because the mean of its divisors is an integer number (204879).

2^1982550 is an apocalyptic number.

1982550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1982550 is an abundant number, since it is smaller than the sum of its proper divisors (2934546).

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

1982550 is a wasteful number, since it uses less digits than its factorization.

1982550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13232 (or 13227 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 1982550 is about 1408.0305394415. The cubic root of 1982550 is about 125.6246070630.

The spelling of 1982550 in words is "one million, nine hundred eighty-two thousand, five hundred fifty".