113245440 has 288 divisors, whose sum is σ = 452100096. Its totient is φ = 23470080.

The previous prime is 113245423. The next prime is 113245481. The reversal of 113245440 is 44542311.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 113245440.

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, 295489 + ... + 295871.

It is an arithmetic number, because the mean of its divisors is an integer number (1569792).

Almost surely, 2^113245440 is an apocalyptic number.

113245440 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 113245440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226050048).

113245440 is an abundant number, since it is smaller than the sum of its proper divisors (338854656).

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

113245440 is a wasteful number, since it uses less digits than its factorization.

113245440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 113245440 is about 10641.6840772502. The cubic root of 113245440 is about 483.8085894757.

Adding to 113245440 its reverse (44542311), we get a palindrome (157787751).

The spelling of 113245440 in words is "one hundred thirteen million, two hundred forty-five thousand, four hundred forty".