1090999960 has 16 divisors (see below), whose sum is σ = 2454750000. Its totient is φ = 436399968.

The previous prime is 1090999951. The next prime is 1090999967. The reversal of 1090999960 is 699990901.

1090999960 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1090999898 and 1090999907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090999967) 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, 13637460 + ... + 13637539.

It is an arithmetic number, because the mean of its divisors is an integer number (153421875).

Almost surely, 2^1090999960 is an apocalyptic number.

1090999960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1090999960 is an abundant number, since it is smaller than the sum of its proper divisors (1363750040).

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

1090999960 is a wasteful number, since it uses less digits than its factorization.

1090999960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27275010 (or 27275006 counting only the distinct ones).

The product of its (nonzero) digits is 354294, while the sum is 52.

The square root of 1090999960 is about 33030.2885243226. The cubic root of 1090999960 is about 1029.4570802608.

The spelling of 1090999960 in words is "one billion, ninety million, nine hundred ninety-nine thousand, nine hundred sixty".