123349442 has 16 divisors (see below), whose sum is σ = 188720064. Its totient is φ = 60450000.

The previous prime is 123349439. The next prime is 123349477. The reversal of 123349442 is 244943321.

It is a super-2 number, since 2×123349442² = 30430169683422728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123349399 and 123349408.

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 7 ways as a sum of consecutive naturals, for example, 36317 + ... + 39567.

It is an arithmetic number, because the mean of its divisors is an integer number (11795004).

Almost surely, 2^123349442 is an apocalyptic number.

123349442 is a deficient number, since it is larger than the sum of its proper divisors (65370622).

123349442 is a wasteful number, since it uses less digits than its factorization.

123349442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625.

The product of its digits is 20736, while the sum is 32.

The square root of 123349442 is about 11106.2793950089. The cubic root of 123349442 is about 497.7894977613.

The spelling of 123349442 in words is "one hundred twenty-three million, three hundred forty-nine thousand, four hundred forty-two".