1173678140 has 48 divisors (see below), whose sum is σ = 2553919200. Its totient is φ = 452535552.

The previous prime is 1173678139. The next prime is 1173678151. The reversal of 1173678140 is 418763711.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1173678094 and 1173678103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460991 + ... + 463529.

It is an arithmetic number, because the mean of its divisors is an integer number (53206650).

Almost surely, 2^1173678140 is an apocalyptic number.

1173678140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1173678140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1276959600).

1173678140 is an abundant number, since it is smaller than the sum of its proper divisors (1380241060).

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

1173678140 is a wasteful number, since it uses less digits than its factorization.

1173678140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374 (or 3372 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 1173678140 is about 34258.9862663798. The cubic root of 1173678140 is about 1054.8312930744.

The spelling of 1173678140 in words is "one billion, one hundred seventy-three million, six hundred seventy-eight thousand, one hundred forty".