1181104386 has 32 divisors (see below), whose sum is σ = 2945092608. Its totient is φ = 306780240.

The previous prime is 1181104339. The next prime is 1181104423. The reversal of 1181104386 is 6834011811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1277790 + ... + 1278713.

It is an arithmetic number, because the mean of its divisors is an integer number (92034144).

Almost surely, 2^1181104386 is an apocalyptic number.

1181104386 is an abundant number, since it is smaller than the sum of its proper divisors (1763988222).

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

1181104386 is a wasteful number, since it uses less digits than its factorization.

1181104386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556526.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 1181104386 is about 34367.1992748900. The cubic root of 1181104386 is about 1057.0513716075.

The spelling of 1181104386 in words is "one billion, one hundred eighty-one million, one hundred four thousand, three hundred eighty-six".