1093978044 has 18 divisors (see below), whose sum is σ = 2765333480. Its totient is φ = 364659336.

The previous prime is 1093978027. The next prime is 1093978051. The reversal of 1093978044 is 4408793901.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15194104 + ... + 15194175.

Almost surely, 2^1093978044 is an apocalyptic number.

It is an amenable number.

1093978044 is an abundant number, since it is smaller than the sum of its proper divisors (1671355436).

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

1093978044 is a wasteful number, since it uses less digits than its factorization.

1093978044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30388289 (or 30388284 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1093978044 is about 33075.3389098283. The cubic root of 1093978044 is about 1030.3929264055.

The spelling of 1093978044 in words is "one billion, ninety-three million, nine hundred seventy-eight thousand, forty-four".