1193990 has 32 divisors (see below), whose sum is σ = 2528064. Its totient is φ = 397440.

The previous prime is 1193989. The next prime is 1193993. The reversal of 1193990 is 993911.

It is a super-2 number, since 2×1193990² = 2851224240200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1193993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2360 + ... + 2820.

It is an arithmetic number, because the mean of its divisors is an integer number (79002).

2^1193990 is an apocalyptic number.

1193990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1193990 is an abundant number, since it is smaller than the sum of its proper divisors (1334074).

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

1193990 is a wasteful number, since it uses less digits than its factorization.

1193990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512.

The product of its (nonzero) digits is 2187, while the sum is 32.

The square root of 1193990 is about 1092.6984945537. The cubic root of 1193990 is about 106.0881549793.

The spelling of 1193990 in words is "one million, one hundred ninety-three thousand, nine hundred ninety".