123444398 has 32 divisors (see below), whose sum is σ = 232581888. Its totient is φ = 47736000.

The previous prime is 123444397. The next prime is 123444401. The reversal of 123444398 is 893444321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123444397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18173 + ... + 24023.

It is an arithmetic number, because the mean of its divisors is an integer number (7268184).

Almost surely, 2^123444398 is an apocalyptic number.

123444398 is a deficient number, since it is larger than the sum of its proper divisors (109137490).

123444398 is a wasteful number, since it uses less digits than its factorization.

123444398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6008.

The product of its digits is 82944, while the sum is 38.

The square root of 123444398 is about 11110.5534515613. The cubic root of 123444398 is about 497.9171999348.

The spelling of 123444398 in words is "one hundred twenty-three million, four hundred forty-four thousand, three hundred ninety-eight".