40430423 has 8 divisors (see below), whose sum is σ = 46427520. Its totient is φ = 34820280.

The previous prime is 40430419. The next prime is 40430447. The reversal of 40430423 is 32403404.

It is a happy number.

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

It is not a de Polignac number, because 40430423 - 2² = 40430419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40430395 and 40430404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40430623) 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, 96515 + ... + 96932.

It is an arithmetic number, because the mean of its divisors is an integer number (5803440).

Almost surely, 2^40430423 is an apocalyptic number.

40430423 is a deficient number, since it is larger than the sum of its proper divisors (5997097).

40430423 is a wasteful number, since it uses less digits than its factorization.

40430423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193477.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 40430423 is about 6358.4921954816. The cubic root of 40430423 is about 343.2175037892.

Adding to 40430423 its reverse (32403404), we get a palindrome (72833827).

The spelling of 40430423 in words is "forty million, four hundred thirty thousand, four hundred twenty-three".