1101044340 has 360 divisors, whose sum is σ = 3917551176. Its totient is φ = 258508800.

The previous prime is 1101044333. The next prime is 1101044359. The reversal of 1101044340 is 434401011.

It can be written as a sum of positive squares in 4 ways, for example, as 7683984 + 1093360356 = 2772^2 + 33066^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 8036752 + ... + 8036888.

Almost surely, 2^1101044340 is an apocalyptic number.

1101044340 is a gapful number since it is divisible by the number (10) 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 1101044340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1958775588).

1101044340 is an abundant number, since it is smaller than the sum of its proper divisors (2816506836).

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

1101044340 is a wasteful number, since it uses less digits than its factorization.

1101044340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1101044340 is about 33181.9881863640. The cubic root of 1101044340 is about 1032.6066943740.

Adding to 1101044340 its reverse (434401011), we get a palindrome (1535445351).

The spelling of 1101044340 in words is "one billion, one hundred one million, forty-four thousand, three hundred forty".