123448572 has 144 divisors (see below), whose sum is σ = 354844672. Its totient is φ = 35925120.

The previous prime is 123448561. The next prime is 123448579. The reversal of 123448572 is 275844321.

It is a happy number.

123448572 is a `hidden beast` number, since 12 + 34 + 48 + 572 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123448579) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 971973 + ... + 972099.

Almost surely, 2^123448572 is an apocalyptic number.

123448572 is a gapful number since it is divisible by the number (12) 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 123448572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177422336).

123448572 is an abundant number, since it is smaller than the sum of its proper divisors (231396100).

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

123448572 is a wasteful number, since it uses less digits than its factorization.

123448572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 243 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 123448572 is about 11110.7412894010. The cubic root of 123448572 is about 497.9228118622.

The spelling of 123448572 in words is "one hundred twenty-three million, four hundred forty-eight thousand, five hundred seventy-two".