1101791394 has 72 divisors (see below), whose sum is σ = 2667300636. Its totient is φ = 328363200.

The previous prime is 1101791389. The next prime is 1101791407. The reversal of 1101791394 is 4931971011.

It can be written as a sum of positive squares in 2 ways, for example, as 891918225 + 209873169 = 29865^2 + 14487^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 128712 + ... + 137004.

Almost surely, 2^1101791394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1101791394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1333650318).

1101791394 is an abundant number, since it is smaller than the sum of its proper divisors (1565509242).

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

1101791394 is a wasteful number, since it uses less digits than its factorization.

1101791394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8384 (or 8370 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 1101791394 is about 33193.2431979763. The cubic root of 1101791394 is about 1032.8401813561.

The spelling of 1101791394 in words is "one billion, one hundred one million, seven hundred ninety-one thousand, three hundred ninety-four".