1173349878 has 24 divisors (see below), whose sum is σ = 2379351528. Its totient is φ = 385748352.

The previous prime is 1173349873. The next prime is 1173349897. The reversal of 1173349878 is 8789433711.

It is a super-2 number, since 2×1173349878² = 2753499872405229768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1173349878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1173349873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13626 + ... + 50322.

It is an arithmetic number, because the mean of its divisors is an integer number (99139647).

Almost surely, 2^1173349878 is an apocalyptic number.

1173349878 is an abundant number, since it is smaller than the sum of its proper divisors (1206001650).

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

1173349878 is an equidigital number, since it uses as much as digits as its factorization.

1173349878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36848 (or 36775 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 51.

The square root of 1173349878 is about 34254.1950423594. The cubic root of 1173349878 is about 1054.7329431934.

The spelling of 1173349878 in words is "one billion, one hundred seventy-three million, three hundred forty-nine thousand, eight hundred seventy-eight".