113255440 has 40 divisors (see below), whose sum is σ = 272404440. Its totient is φ = 43739136.

The previous prime is 113255423. The next prime is 113255449. The reversal of 113255440 is 44552311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8479744 + 104775696 = 2912^2 + 10236^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113255449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22089 + ... + 26728.

It is an arithmetic number, because the mean of its divisors is an integer number (6810111).

Almost surely, 2^113255440 is an apocalyptic number.

113255440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113255440 is an abundant number, since it is smaller than the sum of its proper divisors (159149000).

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

113255440 is a wasteful number, since it uses less digits than its factorization.

113255440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48859 (or 48853 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 113255440 is about 10642.1539173233. The cubic root of 113255440 is about 483.8228297650.

The spelling of 113255440 in words is "one hundred thirteen million, two hundred fifty-five thousand, four hundred forty".