123001944 has 64 divisors (see below), whose sum is σ = 332640000. Its totient is φ = 37677696.

The previous prime is 123001943. The next prime is 123001951. The reversal of 123001944 is 449100321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123001943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81307 + ... + 82805.

It is an arithmetic number, because the mean of its divisors is an integer number (5197500).

Almost surely, 2^123001944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123001944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166320000).

123001944 is an abundant number, since it is smaller than the sum of its proper divisors (209638056).

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

123001944 is a wasteful number, since it uses less digits than its factorization.

123001944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784 (or 1780 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 123001944 is about 11090.6241483516. The cubic root of 123001944 is about 497.3216033350.

The spelling of 123001944 in words is "one hundred twenty-three million, one thousand, nine hundred forty-four".