40343529 has 4 divisors (see below), whose sum is σ = 53791376. Its totient is φ = 26895684.

The previous prime is 40343521. The next prime is 40343543. The reversal of 40343529 is 92534304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40343529 - 2³ = 40343521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40343496 and 40343505.

It is not an unprimeable number, because it can be changed into a prime (40343521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6723919 + ... + 6723924.

It is an arithmetic number, because the mean of its divisors is an integer number (13447844).

Almost surely, 2^40343529 is an apocalyptic number.

It is an amenable number.

40343529 is a deficient number, since it is larger than the sum of its proper divisors (13447847).

40343529 is a wasteful number, since it uses less digits than its factorization.

40343529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13447846.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 40343529 is about 6351.6556109411. The cubic root of 40343529 is about 342.9714437604.

The spelling of 40343529 in words is "forty million, three hundred forty-three thousand, five hundred twenty-nine".