123442572 has 48 divisors (see below), whose sum is σ = 314899200. Its totient is φ = 37325760.

The previous prime is 123442549. The next prime is 123442597. The reversal of 123442572 is 275244321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92929 + ... + 94247.

It is an arithmetic number, because the mean of its divisors is an integer number (6560400).

Almost surely, 2^123442572 is an apocalyptic number.

123442572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123442572 is an abundant number, since it is smaller than the sum of its proper divisors (191456628).

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

123442572 is a wasteful number, since it uses less digits than its factorization.

123442572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046 (or 2044 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 123442572 is about 11110.4712771331. The cubic root of 123442572 is about 497.9147448449.

Adding to 123442572 its reverse (275244321), we get a palindrome (398686893).

The spelling of 123442572 in words is "one hundred twenty-three million, four hundred forty-two thousand, five hundred seventy-two".