40530433 has 4 divisors (see below), whose sum is σ = 40757040. Its totient is φ = 40303828.

The previous prime is 40530419. The next prime is 40530437. The reversal of 40530433 is 33403504.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40530433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40530437) 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, 113035 + ... + 113392.

It is an arithmetic number, because the mean of its divisors is an integer number (10189260).

Almost surely, 2^40530433 is an apocalyptic number.

It is an amenable number.

40530433 is a deficient number, since it is larger than the sum of its proper divisors (226607).

40530433 is a wasteful number, since it uses less digits than its factorization.

40530433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226606.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 40530433 is about 6366.3516239680. The cubic root of 40530433 is about 343.5002687321.

Adding to 40530433 its reverse (33403504), we get a palindrome (73933937).

The spelling of 40530433 in words is "forty million, five hundred thirty thousand, four hundred thirty-three".