1174778880 has 352 divisors, whose sum is σ = 4350775680. Its totient is φ = 267386880.

The previous prime is 1174778861. The next prime is 1174778881. The reversal of 1174778880 is 888774711.

It is a tau number, because it is divible by the number of its divisors (352).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1174778881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2872116 + ... + 2872524.

Almost surely, 2^1174778880 is an apocalyptic number.

1174778880 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 1174778880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2175387840).

1174778880 is an abundant number, since it is smaller than the sum of its proper divisors (3175996800).

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

1174778880 is a wasteful number, since it uses less digits than its factorization.

1174778880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 51.

The square root of 1174778880 is about 34275.0474835557. The cubic root of 1174778880 is about 1055.1609496663.

The spelling of 1174778880 in words is "one billion, one hundred seventy-four million, seven hundred seventy-eight thousand, eight hundred eighty".