1140047979 has 8 divisors (see below), whose sum is σ = 1737216000. Its totient is φ = 651455976.

The previous prime is 1140047921. The next prime is 1140048001. The reversal of 1140047979 is 9797400411.

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

It is not a de Polignac number, because 1140047979 - 2⁷ = 1140047851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1140047979.

It is not an unprimeable number, because it can be changed into a prime (1140043979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27143979 + ... + 27144020.

It is an arithmetic number, because the mean of its divisors is an integer number (217152000).

Almost surely, 2^1140047979 is an apocalyptic number.

1140047979 is a deficient number, since it is larger than the sum of its proper divisors (597168021).

1140047979 is an equidigital number, since it uses as much as digits as its factorization.

1140047979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54288009.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 1140047979 is about 33764.5965324628. The cubic root of 1140047979 is about 1044.6585818714.

The spelling of 1140047979 in words is "one billion, one hundred forty million, forty-seven thousand, nine hundred seventy-nine".