1182990 has 32 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 308384.

The previous prime is 1182989. The next prime is 1183003. The reversal of 1182990 is 992811.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 991 + ... + 1829.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2^1182990 is an apocalyptic number.

1182990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1182990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451520).

1182990 is an abundant number, since it is smaller than the sum of its proper divisors (1720050).

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

1182990 is a wasteful number, since it uses less digits than its factorization.

1182990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 1182990 is about 1087.6534374515. The cubic root of 1182990 is about 105.7613594312.

The spelling of 1182990 in words is "one million, one hundred eighty-two thousand, nine hundred ninety".