123421344 has 48 divisors (see below), whose sum is σ = 332746848. Its totient is φ = 40027392.

The previous prime is 123421339. The next prime is 123421387. The reversal of 123421344 is 443124321.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13822 + ... + 20925.

It is an arithmetic number, because the mean of its divisors is an integer number (6932226).

Almost surely, 2^123421344 is an apocalyptic number.

It is an amenable number.

123421344 is an abundant number, since it is smaller than the sum of its proper divisors (209325504).

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

123421344 is a wasteful number, since it uses less digits than its factorization.

123421344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34797 (or 34789 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 123421344 is about 11109.5159210471. The cubic root of 123421344 is about 497.8862016393.

Adding to 123421344 its reverse (443124321), we get a palindrome (566545665).

It can be divided in two parts, 1234 and 21344, that added together give a triangular number (22578 = T₂₁₂).

The spelling of 123421344 in words is "one hundred twenty-three million, four hundred twenty-one thousand, three hundred forty-four".