43240413 has 16 divisors (see below), whose sum is σ = 59755520. Its totient is φ = 27793584.

The previous prime is 43240411. The next prime is 43240429. The reversal of 43240413 is 31404234.

It is not a de Polignac number, because 43240413 - 2¹ = 43240411 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43240413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43240411) 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, 8070 + ... + 12312.

It is an arithmetic number, because the mean of its divisors is an integer number (3734720).

Almost surely, 2^43240413 is an apocalyptic number.

43240413 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

43240413 is a deficient number, since it is larger than the sum of its proper divisors (16515107).

43240413 is a wasteful number, since it uses less digits than its factorization.

43240413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4368.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 43240413 is about 6575.7442924737. The cubic root of 43240413 is about 350.9915096038.

Adding to 43240413 its reverse (31404234), we get a palindrome (74644647).

The spelling of 43240413 in words is "forty-three million, two hundred forty thousand, four hundred thirteen".