115448240 has 20 divisors (see below), whose sum is σ = 268417344. Its totient is φ = 46179264.

The previous prime is 115448213. The next prime is 115448261. The reversal of 115448240 is 42844511.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×115448240² = 26656592238195200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721472 + ... + 721631.

Almost surely, 2^115448240 is an apocalyptic number.

115448240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115448240 is an abundant number, since it is smaller than the sum of its proper divisors (152969104).

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

115448240 is a wasteful number, since it uses less digits than its factorization.

115448240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443116 (or 1443110 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 115448240 is about 10744.6842671155. The cubic root of 115448240 is about 486.9254102517.

It can be divided in two parts, 1154 and 48240, that added together give a palindrome (49394).

The spelling of 115448240 in words is "one hundred fifteen million, four hundred forty-eight thousand, two hundred forty".