1088779944 has 128 divisors (see below), whose sum is σ = 3237120000. Its totient is φ = 298577664.

The previous prime is 1088779897. The next prime is 1088779981. The reversal of 1088779944 is 4499778801.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 968967 + ... + 970089.

It is an arithmetic number, because the mean of its divisors is an integer number (25290000).

Almost surely, 2^1088779944 is an apocalyptic number.

1088779944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1088779944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1618560000).

1088779944 is an abundant number, since it is smaller than the sum of its proper divisors (2148340056).

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

1088779944 is a wasteful number, since it uses less digits than its factorization.

1088779944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367 (or 1363 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 57.

The square root of 1088779944 is about 32996.6656497289. The cubic root of 1088779944 is about 1028.7583441835.

The spelling of 1088779944 in words is "one billion, eighty-eight million, seven hundred seventy-nine thousand, nine hundred forty-four".