43240406 has 16 divisors (see below), whose sum is σ = 70918848. Its totient is φ = 19609800.

The previous prime is 43240397. The next prime is 43240411. The reversal of 43240406 is 60404234.

It is a happy number.

It is a super-2 number, since 2×43240406² = 3739465422089672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8801 + ... + 12803.

It is an arithmetic number, because the mean of its divisors is an integer number (4432428).

Almost surely, 2^43240406 is an apocalyptic number.

43240406 is a deficient number, since it is larger than the sum of its proper divisors (27678442).

43240406 is a wasteful number, since it uses less digits than its factorization.

43240406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 43240406 is about 6575.7437602145. The cubic root of 43240406 is about 350.9914906636.

The spelling of 43240406 in words is "forty-three million, two hundred forty thousand, four hundred six".