40233443 has 4 divisors (see below), whose sum is σ = 41531328. Its totient is φ = 38935560.

The previous prime is 40233409. The next prime is 40233449. The reversal of 40233443 is 34433204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40233443 - 2⁶ = 40233379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40233449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648896 + ... + 648957.

It is an arithmetic number, because the mean of its divisors is an integer number (10382832).

Almost surely, 2^40233443 is an apocalyptic number.

40233443 is a deficient number, since it is larger than the sum of its proper divisors (1297885).

40233443 is a wasteful number, since it uses less digits than its factorization.

40233443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297884.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 40233443 is about 6342.9837616062. The cubic root of 40233443 is about 342.6592024538.

Adding to 40233443 its reverse (34433204), we get a palindrome (74666647).

The spelling of 40233443 in words is "forty million, two hundred thirty-three thousand, four hundred forty-three".