40235243 has 16 divisors (see below), whose sum is σ = 44717184. Its totient is φ = 36034560.

The previous prime is 40235201. The next prime is 40235263. The reversal of 40235243 is 34253204.

It is not a de Polignac number, because 40235243 - 2¹⁰ = 40234219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40235263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28883 + ... + 30243.

It is an arithmetic number, because the mean of its divisors is an integer number (2794824).

Almost surely, 2^40235243 is an apocalyptic number.

40235243 is a deficient number, since it is larger than the sum of its proper divisors (4481941).

40235243 is a wasteful number, since it uses less digits than its factorization.

40235243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 40235243 is about 6343.1256490787. The cubic root of 40235243 is about 342.6643124429.

Adding to 40235243 its reverse (34253204), we get a palindrome (74488447).

The spelling of 40235243 in words is "forty million, two hundred thirty-five thousand, two hundred forty-three".