40243435 has 4 divisors (see below), whose sum is σ = 48292128. Its totient is φ = 32194744.

The previous prime is 40243417. The next prime is 40243459. The reversal of 40243435 is 53434204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40243435 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4024339 + ... + 4024348.

It is an arithmetic number, because the mean of its divisors is an integer number (12073032).

Almost surely, 2^40243435 is an apocalyptic number.

40243435 is a deficient number, since it is larger than the sum of its proper divisors (8048693).

40243435 is an equidigital number, since it uses as much as digits as its factorization.

40243435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8048692.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 40243435 is about 6343.7713546439. The cubic root of 40243435 is about 342.6875666462.

Adding to 40243435 its reverse (53434204), we get a palindrome (93677639).

The spelling of 40243435 in words is "forty million, two hundred forty-three thousand, four hundred thirty-five".