1095049980 has 36 divisors (see below), whose sum is σ = 3321652152. Its totient is φ = 292013280.

The previous prime is 1095049937. The next prime is 1095049981. The reversal of 1095049980 is 899405901.

1095049980 is a `hidden beast` number, since 109 + 50 + 499 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1095049981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3041626 + ... + 3041985.

Almost surely, 2^1095049980 is an apocalyptic number.

1095049980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1095049980 is an abundant number, since it is smaller than the sum of its proper divisors (2226602172).

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

1095049980 is a wasteful number, since it uses less digits than its factorization.

1095049980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6083626 (or 6083621 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 1095049980 is about 33091.5394020889. The cubic root of 1095049980 is about 1030.7293605538.

The spelling of 1095049980 in words is "one billion, ninety-five million, forty-nine thousand, nine hundred eighty".