113409679440 has 160 divisors (see below), whose sum is σ = 357873344640. Its totient is φ = 29704603648.

The previous prime is 113409679433. The next prime is 113409679531. The reversal of 113409679440 is 44976904311.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 113409679440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3429706 + ... + 3462614.

It is an arithmetic number, because the mean of its divisors is an integer number (2236708404).

Almost surely, 2^113409679440 is an apocalyptic number.

113409679440 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 113409679440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178936672320).

113409679440 is an abundant number, since it is smaller than the sum of its proper divisors (244463665200).

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

113409679440 is a wasteful number, since it uses less digits than its factorization.

113409679440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33181 (or 33175 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 113409679440 in words is "one hundred thirteen billion, four hundred nine million, six hundred seventy-nine thousand, four hundred forty".