1095249988 has 12 divisors (see below), whose sum is σ = 2190500032. Its totient is φ = 469392840.

The previous prime is 1095249983. The next prime is 1095250001. The reversal of 1095249988 is 8899425901.

1095249988 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1095249983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19558008 + ... + 19558063.

Almost surely, 2^1095249988 is an apocalyptic number.

It is an amenable number.

1095249988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1095249988 is a wasteful number, since it uses less digits than its factorization.

1095249988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39116082 (or 39116080 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 55.

The square root of 1095249988 is about 33094.5613054472. The cubic root of 1095249988 is about 1030.7921100696.

The spelling of 1095249988 in words is "one billion, ninety-five million, two hundred forty-nine thousand, nine hundred eighty-eight".