115220448 has 96 divisors (see below), whose sum is σ = 384088320. Its totient is φ = 32918400.

The previous prime is 115220447. The next prime is 115220461. The reversal of 115220448 is 844022511.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115220447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3478 + ... + 15573.

It is an arithmetic number, because the mean of its divisors is an integer number (4000920).

Almost surely, 2^115220448 is an apocalyptic number.

115220448 is a gapful number since it is divisible by the number (18) 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 115220448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192044160).

115220448 is an abundant number, since it is smaller than the sum of its proper divisors (268867872).

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

115220448 is a wasteful number, since it uses less digits than its factorization.

115220448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19077 (or 19063 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 115220448 is about 10734.0788146911. The cubic root of 115220448 is about 486.6049470321.

Adding to 115220448 its reverse (844022511), we get a palindrome (959242959).

The spelling of 115220448 in words is "one hundred fifteen million, two hundred twenty thousand, four hundred forty-eight".