1172348640 has 504 divisors, whose sum is σ = 4569483240. Its totient is φ = 283295232.

The previous prime is 1172348633. The next prime is 1172348677. The reversal of 1172348640 is 468432711.

1172348640 is a `hidden beast` number, since 1 + 1 + 7 + 2 + 3 + 4 + 8 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1172348595 and 1172348604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 50971669 + ... + 50971691.

It is an arithmetic number, because the mean of its divisors is an integer number (9066435).

Almost surely, 2^1172348640 is an apocalyptic number.

1172348640 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 1172348640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2284741620).

1172348640 is an abundant number, since it is smaller than the sum of its proper divisors (3397134600).

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

1172348640 is an equidigital number, since it uses as much as digits as its factorization.

1172348640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1172348640 is about 34239.5771001921. The cubic root of 1172348640 is about 1054.4328510546.

The spelling of 1172348640 in words is "one billion, one hundred seventy-two million, three hundred forty-eight thousand, six hundred forty".