1113890 has 32 divisors (see below), whose sum is σ = 2177280. Its totient is φ = 409024.

The previous prime is 1113887. The next prime is 1113899. The reversal of 1113890 is 983111.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113899) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6587 + ... + 6753.

It is an arithmetic number, because the mean of its divisors is an integer number (68040).

2^1113890 is an apocalyptic number.

1113890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1113890 is a deficient number, since it is larger than the sum of its proper divisors (1063390).

1113890 is a wasteful number, since it uses less digits than its factorization.

1113890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 1113890 is about 1055.4098729877. The cubic root of 1113890 is about 103.6606915196.

The spelling of 1113890 in words is "one million, one hundred thirteen thousand, eight hundred ninety".