1100400044 has 6 divisors (see below), whose sum is σ = 1925700084. Its totient is φ = 550200020.

The previous prime is 1100400043. The next prime is 1100400047. The reversal of 1100400044 is 4400040011.

It is a super-3 number, since 3×1100400044³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1100400043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137550002 + ... + 137550009.

It is an arithmetic number, because the mean of its divisors is an integer number (320950014).

Almost surely, 2^1100400044 is an apocalyptic number.

It is an amenable number.

1100400044 is a deficient number, since it is larger than the sum of its proper divisors (825300040).

1100400044 is a wasteful number, since it uses less digits than its factorization.

1100400044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275100015 (or 275100013 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1100400044 is about 33172.2782455471. The cubic root of 1100400044 is about 1032.4052389157.

Adding to 1100400044 its reverse (4400040011), we get a palindrome (5500440055).

The spelling of 1100400044 in words is "one billion, one hundred million, four hundred thousand, forty-four".