40550123 has 8 divisors (see below), whose sum is σ = 42926400. Its totient is φ = 38198088.

The previous prime is 40550087. The next prime is 40550131. The reversal of 40550123 is 32105504.

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 40550123 - 2¹⁸ = 40287979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40550095 and 40550104.

It is not an unprimeable number, because it can be changed into a prime (40550023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2561 + ... + 9362.

It is an arithmetic number, because the mean of its divisors is an integer number (5365800).

Almost surely, 2^40550123 is an apocalyptic number.

40550123 is a deficient number, since it is larger than the sum of its proper divisors (2376277).

40550123 is a wasteful number, since it uses less digits than its factorization.

40550123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 40550123 is about 6367.8978477988. The cubic root of 40550123 is about 343.5558847621. Note that the first 3 decimals are identical.

Adding to 40550123 its reverse (32105504), we get a palindrome (72655627).

The spelling of 40550123 in words is "forty million, five hundred fifty thousand, one hundred twenty-three".