1099426960 has 20 divisors (see below), whose sum is σ = 2556167868. Its totient is φ = 439770752.

The previous prime is 1099426957. The next prime is 1099426981. The reversal of 1099426960 is 696249901.

It can be written as a sum of positive squares in 2 ways, for example, as 300120976 + 799305984 = 17324^2 + 28272^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 1099426960.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6871339 + ... + 6871498.

Almost surely, 2^1099426960 is an apocalyptic number.

1099426960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1099426960 is an abundant number, since it is smaller than the sum of its proper divisors (1456740908).

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

1099426960 is a wasteful number, since it uses less digits than its factorization.

1099426960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13742850 (or 13742844 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 1099426960 is about 33157.6078751167. The cubic root of 1099426960 is about 1032.1008304422.

It can be divided in two parts, 1099426 and 960, that added together give a triangular number (1100386 = T₁₄₈₃).

The spelling of 1099426960 in words is "one billion, ninety-nine million, four hundred twenty-six thousand, nine hundred sixty".