1089756954 has 144 divisors (see below), whose sum is σ = 2887915680. Its totient is φ = 294053760.

The previous prime is 1089756953. The next prime is 1089756959. The reversal of 1089756954 is 4596579801.

It is a self number, because there is not a number n which added to its sum of digits gives 1089756954.

It is not an unprimeable number, because it can be changed into a prime (1089756953) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 969837 + ... + 970959.

It is an arithmetic number, because the mean of its divisors is an integer number (20054970).

Almost surely, 2^1089756954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1089756954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1443957840).

1089756954 is an abundant number, since it is smaller than the sum of its proper divisors (1798158726).

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

1089756954 is a wasteful number, since it uses less digits than its factorization.

1089756954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The square root of 1089756954 is about 33011.4670076929. The cubic root of 1089756954 is about 1029.0659688488.

The spelling of 1089756954 in words is "one billion, eighty-nine million, seven hundred fifty-six thousand, nine hundred fifty-four".