40235435420 has 12 divisors (see below), whose sum is σ = 84494414424. Its totient is φ = 16094174160.

The previous prime is 40235435393. The next prime is 40235435441. The reversal of 40235435420 is 2453453204.

It is a congruent 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, 1005885866 + ... + 1005885905.

It is an arithmetic number, because the mean of its divisors is an integer number (7041201202).

Almost surely, 2^40235435420 is an apocalyptic number.

It is an amenable number.

40235435420 is an abundant number, since it is smaller than the sum of its proper divisors (44258979004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40235435420 is a wasteful number, since it uses less digits than its factorization.

40235435420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011771780 (or 2011771778 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 40235435420 its reverse (2453453204), we get a palindrome (42688888624).

The spelling of 40235435420 in words is "forty billion, two hundred thirty-five million, four hundred thirty-five thousand, four hundred twenty".