1113678720 has 896 divisors, whose sum is σ = 5137274880. Its totient is φ = 223948800.

The previous prime is 1113678691. The next prime is 1113678733. The reversal of 1113678720 is 278763111.

It is a tau number, because it is divible by the number of its divisors (896).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 35925105 + ... + 35925135.

Almost surely, 2^1113678720 is an apocalyptic number.

1113678720 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 1113678720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2568637440).

1113678720 is an abundant number, since it is smaller than the sum of its proper divisors (4023596160).

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

1113678720 is an equidigital number, since it uses as much as digits as its factorization.

1113678720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 1113678720 is about 33371.8252422609. The cubic root of 1113678720 is about 1036.5413706756.

The spelling of 1113678720 in words is "one billion, one hundred thirteen million, six hundred seventy-eight thousand, seven hundred twenty".