1099491386 has 8 divisors (see below), whose sum is σ = 1884842400. Its totient is φ = 471210588.

The previous prime is 1099491377. The next prime is 1099491397. The reversal of 1099491386 is 6831949901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39267536 + ... + 39267563.

It is an arithmetic number, because the mean of its divisors is an integer number (235605300).

Almost surely, 2^1099491386 is an apocalyptic number.

1099491386 is a deficient number, since it is larger than the sum of its proper divisors (785351014).

1099491386 is an equidigital number, since it uses as much as digits as its factorization.

1099491386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78535108.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 1099491386 is about 33158.5793724641. The cubic root of 1099491386 is about 1032.1209902866.

The spelling of 1099491386 in words is "one billion, ninety-nine million, four hundred ninety-one thousand, three hundred eighty-six".