123440084 has 12 divisors (see below), whose sum is σ = 217451808. Its totient is φ = 61311000.

The previous prime is 123440081. The next prime is 123440099. The reversal of 123440084 is 480044321.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123440081) 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, 101582 + ... + 102789.

It is an arithmetic number, because the mean of its divisors is an integer number (18120984).

Almost surely, 2^123440084 is an apocalyptic number.

It is an amenable number.

123440084 is a deficient number, since it is larger than the sum of its proper divisors (94011724).

123440084 is a wasteful number, since it uses less digits than its factorization.

123440084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204526 (or 204524 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 123440084 is about 11110.3593101213. The cubic root of 123440084 is about 497.9113996451.

The spelling of 123440084 in words is "one hundred twenty-three million, four hundred forty thousand, eighty-four".