123890744 has 16 divisors (see below), whose sum is σ = 233992800. Its totient is φ = 61492672.

The previous prime is 123890729. The next prime is 123890777. The reversal of 123890744 is 447098321.

It is a junction number, because it is equal to n+sod(n) for n = 123890698 and 123890707.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 55424 + ... + 57615.

It is an arithmetic number, because the mean of its divisors is an integer number (14624550).

Almost surely, 2^123890744 is an apocalyptic number.

It is an amenable number.

123890744 is a deficient number, since it is larger than the sum of its proper divisors (110102056).

123890744 is a wasteful number, since it uses less digits than its factorization.

123890744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113182 (or 113178 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 123890744 is about 11130.6219053564. The cubic root of 123890744 is about 498.5165953737.

The spelling of 123890744 in words is "one hundred twenty-three million, eight hundred ninety thousand, seven hundred forty-four".