40680123 has 16 divisors (see below), whose sum is σ = 61744896. Its totient is φ = 23582240.

The previous prime is 40680119. The next prime is 40680137. The reversal of 40680123 is 32108604.

It is a happy number.

It is not a de Polignac number, because 40680123 - 2² = 40680119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40680093 and 40680102.

It is not an unprimeable number, because it can be changed into a prime (40680103) 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, 26040 + ... + 27557.

It is an arithmetic number, because the mean of its divisors is an integer number (3859056).

Almost surely, 2^40680123 is an apocalyptic number.

40680123 is a deficient number, since it is larger than the sum of its proper divisors (21064773).

40680123 is a wasteful number, since it uses less digits than its factorization.

40680123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53634.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 40680123 is about 6378.0971300224. The cubic root of 40680123 is about 343.9226294131.

Adding to 40680123 its reverse (32108604), we get a palindrome (72788727).

The spelling of 40680123 in words is "forty million, six hundred eighty thousand, one hundred twenty-three".