123420044 has 12 divisors (see below), whose sum is σ = 235620168. Its totient is φ = 56100000.

The previous prime is 123420043. The next prime is 123420053. The reversal of 123420044 is 440024321.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 123419998 and 123420025.

It is not an unprimeable number, because it can be changed into a prime (123420043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1402457 + ... + 1402544.

It is an arithmetic number, because the mean of its divisors is an integer number (19635014).

Almost surely, 2^123420044 is an apocalyptic number.

It is an amenable number.

123420044 is a deficient number, since it is larger than the sum of its proper divisors (112200124).

123420044 is a wasteful number, since it uses less digits than its factorization.

123420044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805016 (or 2805014 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 123420044 is about 11109.4574124932. The cubic root of 123420044 is about 497.8844535507.

Adding to 123420044 its reverse (440024321), we get a palindrome (563444365).

The spelling of 123420044 in words is "one hundred twenty-three million, four hundred twenty thousand, forty-four".