1180728278 has 8 divisors (see below), whose sum is σ = 1771253568. Its totient is φ = 590310424.

The previous prime is 1180728277. The next prime is 1180728281. The reversal of 1180728278 is 8728270811.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180728277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11675 + ... + 49977.

It is an arithmetic number, because the mean of its divisors is an integer number (221406696).

Almost surely, 2^1180728278 is an apocalyptic number.

1180728278 is a deficient number, since it is larger than the sum of its proper divisors (590525290).

1180728278 is a wasteful number, since it uses less digits than its factorization.

1180728278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53718.

The product of its (nonzero) digits is 100352, while the sum is 44.

The square root of 1180728278 is about 34361.7269356475. The cubic root of 1180728278 is about 1056.9391580755.

The spelling of 1180728278 in words is "one billion, one hundred eighty million, seven hundred twenty-eight thousand, two hundred seventy-eight".