1990360 has 32 divisors (see below), whose sum is σ = 4743360. Its totient is φ = 749056.

The previous prime is 1990337. The next prime is 1990361. The reversal of 1990360 is 630991.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990361) 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 in 7 ways as a sum of consecutive naturals, for example, 784 + ... + 2143.

It is an arithmetic number, because the mean of its divisors is an integer number (148230).

2^1990360 is an apocalyptic number.

1990360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1990360 is an abundant number, since it is smaller than the sum of its proper divisors (2753000).

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

1990360 is a wasteful number, since it uses less digits than its factorization.

1990360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955 (or 2951 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 1990360 is about 1410.8011908132. The cubic root of 1990360 is about 125.7893515672.

The spelling of 1990360 in words is "one million, nine hundred ninety thousand, three hundred sixty".