1103290992 has 120 divisors (see below), whose sum is σ = 3224257920. Its totient is φ = 351774720.

The previous prime is 1103290987. The next prime is 1103290999. The reversal of 1103290992 is 2990923011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103290999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 395908 + ... + 398684.

It is an arithmetic number, because the mean of its divisors is an integer number (26868816).

Almost surely, 2^1103290992 is an apocalyptic number.

1103290992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103290992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1612128960).

1103290992 is an abundant number, since it is smaller than the sum of its proper divisors (2120966928).

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

1103290992 is a wasteful number, since it uses less digits than its factorization.

1103290992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911 (or 2902 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 1103290992 is about 33215.8244215013. The cubic root of 1103290992 is about 1033.3085528108.

The spelling of 1103290992 in words is "one billion, one hundred three million, two hundred ninety thousand, nine hundred ninety-two".