123491448 has 48 divisors (see below), whose sum is σ = 335743200. Its totient is φ = 41005440.

The previous prime is 123491447. The next prime is 123491461. The reversal of 123491448 is 844194321.

It is a happy number.

123491448 is a `hidden beast` number, since 123 + 4 + 91 + 448 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123491443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16348 + ... + 22676.

It is an arithmetic number, because the mean of its divisors is an integer number (6994650).

Almost surely, 2^123491448 is an apocalyptic number.

123491448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

123491448 is an abundant number, since it is smaller than the sum of its proper divisors (212251752).

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

123491448 is a wasteful number, since it uses less digits than its factorization.

123491448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6612 (or 6605 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 123491448 is about 11112.6706061144. The cubic root of 123491448 is about 497.9804511608.

The spelling of 123491448 in words is "one hundred twenty-three million, four hundred ninety-one thousand, four hundred forty-eight".