40236423 has 8 divisors (see below), whose sum is σ = 53697648. Its totient is φ = 26799744.

The previous prime is 40236409. The next prime is 40236437. The reversal of 40236423 is 32463204.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40236409) and next prime (40236437).

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

It is not a de Polignac number, because 40236423 - 2⁹ = 40235911 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 40236393 and 40236402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40236323) 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, 1890 + ... + 9167.

It is an arithmetic number, because the mean of its divisors is an integer number (6712206).

Almost surely, 2^40236423 is an apocalyptic number.

40236423 is a deficient number, since it is larger than the sum of its proper divisors (13461225).

40236423 is a wasteful number, since it uses less digits than its factorization.

40236423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12273.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 40236423 is about 6343.2186624773. The cubic root of 40236423 is about 342.6676622420.

Adding to 40236423 its reverse (32463204), we get a palindrome (72699627).

The spelling of 40236423 in words is "forty million, two hundred thirty-six thousand, four hundred twenty-three".