1103990 has 16 divisors (see below), whose sum is σ = 2025648. Its totient is φ = 433056.

The previous prime is 1103989. The next prime is 1104017. The reversal of 1103990 is 993011.

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 7 ways as a sum of consecutive naturals, for example, 512 + ... + 1571.

It is an arithmetic number, because the mean of its divisors is an integer number (126603).

2^1103990 is an apocalyptic number.

1103990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1103990 is a deficient number, since it is larger than the sum of its proper divisors (921658).

1103990 is a wasteful number, since it uses less digits than its factorization.

1103990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 1103990 is about 1050.7092842456. The cubic root of 1103990 is about 103.3526729902.

The spelling of 1103990 in words is "one million, one hundred three thousand, nine hundred ninety".