40433123 has 6 divisors (see below), whose sum is σ = 42951756. Its totient is φ = 38054432.

The previous prime is 40433101. The next prime is 40433131. The reversal of 40433123 is 32133404.

It is a de Polignac number, because none of the positive numbers 2^k-40433123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40433095 and 40433104.

It is not an unprimeable number, because it can be changed into a prime (40433143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69665 + ... + 70242.

It is an arithmetic number, because the mean of its divisors is an integer number (7158626).

Almost surely, 2^40433123 is an apocalyptic number.

40433123 is a deficient number, since it is larger than the sum of its proper divisors (2518633).

40433123 is a wasteful number, since it uses less digits than its factorization.

40433123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139941 (or 139924 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 40433123 is about 6358.7045064227. The cubic root of 40433123 is about 343.2251438002.

Adding to 40433123 its reverse (32133404), we get a palindrome (72566527).

The spelling of 40433123 in words is "forty million, four hundred thirty-three thousand, one hundred twenty-three".