40244123 has 4 divisors (see below), whose sum is σ = 41331840. Its totient is φ = 39156408.

The previous prime is 40244081. The next prime is 40244137. The reversal of 40244123 is 32144204.

40244123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40244123 - 2⁶ = 40244059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40244095 and 40244104.

It is not an unprimeable number, because it can be changed into a prime (40244023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543803 + ... + 543876.

It is an arithmetic number, because the mean of its divisors is an integer number (10332960).

Almost surely, 2^40244123 is an apocalyptic number.

40244123 is a deficient number, since it is larger than the sum of its proper divisors (1087717).

40244123 is a wasteful number, since it uses less digits than its factorization.

40244123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087716.

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

The square root of 40244123 is about 6343.8255808305. The cubic root of 40244123 is about 342.6895194923.

Adding to 40244123 its reverse (32144204), we get a palindrome (72388327).

The spelling of 40244123 in words is "forty million, two hundred forty-four thousand, one hundred twenty-three".