40816123 has 8 divisors (see below), whose sum is σ = 43128320. Its totient is φ = 38520360.

The previous prime is 40816121. The next prime is 40816187. The reversal of 40816123 is 32161804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40816123 - 2¹ = 40816121 is a prime.

It is a super-2 number, since 2×40816123² = 3331911793502258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40816121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1186 + ... + 9112.

It is an arithmetic number, because the mean of its divisors is an integer number (5391040).

Almost surely, 2^40816123 is an apocalyptic number.

40816123 is a deficient number, since it is larger than the sum of its proper divisors (2312197).

40816123 is a wasteful number, since it uses less digits than its factorization.

40816123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8217.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 40816123 is about 6388.7497211896. The cubic root of 40816123 is about 344.3054654443.

Adding to 40816123 its reverse (32161804), we get a palindrome (72977927).

The spelling of 40816123 in words is "forty million, eight hundred sixteen thousand, one hundred twenty-three".