123921446 has 32 divisors (see below), whose sum is σ = 211368960. Its totient is φ = 53978400.

The previous prime is 123921443. The next prime is 123921467. The reversal of 123921446 is 644129321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123921443) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 73505 + ... + 75171.

It is an arithmetic number, because the mean of its divisors is an integer number (6605280).

Almost surely, 2^123921446 is an apocalyptic number.

123921446 is a deficient number, since it is larger than the sum of its proper divisors (87447514).

123921446 is a wasteful number, since it uses less digits than its factorization.

123921446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820.

The product of its digits is 10368, while the sum is 32.

The square root of 123921446 is about 11132.0009881422. Note that the first 3 decimals coincide. The cubic root of 123921446 is about 498.5577719564.

The spelling of 123921446 in words is "one hundred twenty-three million, nine hundred twenty-one thousand, four hundred forty-six".