1349105978 has 8 divisors (see below), whose sum is σ = 2207628000. Its totient is φ = 613229980.

The previous prime is 1349105939. The next prime is 1349105999. The reversal of 1349105978 is 8795019431.

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, 30661478 + ... + 30661521.

It is an arithmetic number, because the mean of its divisors is an integer number (275953500).

Almost surely, 2^1349105978 is an apocalyptic number.

1349105978 is a deficient number, since it is larger than the sum of its proper divisors (858522022).

1349105978 is a wasteful number, since it uses less digits than its factorization.

1349105978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61323012.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 1349105978 is about 36730.1780284278. The cubic root of 1349105978 is about 1104.9654249605.

The spelling of 1349105978 in words is "one billion, three hundred forty-nine million, one hundred five thousand, nine hundred seventy-eight".