40030453 has 2 divisors, whose sum is σ = 40030454. Its totient is φ = 40030452.

The previous prime is 40030433. The next prime is 40030481. The reversal of 40030453 is 35403004.

40030453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38229489 + 1800964 = 6183^2 + 1342^2 .

It is a cyclic number.

It is not a de Polignac number, because 40030453 - 2⁵ = 40030421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40030453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40030433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20015226 + 20015227.

It is an arithmetic number, because the mean of its divisors is an integer number (20015227).

Almost surely, 2^40030453 is an apocalyptic number.

It is an amenable number.

40030453 is a deficient number, since it is larger than the sum of its proper divisors (1).

40030453 is an equidigital number, since it uses as much as digits as its factorization.

40030453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 40030453 is about 6326.9623833242. The cubic root of 40030453 is about 342.0819571487.

Adding to 40030453 its reverse (35403004), we get a palindrome (75433457).

The spelling of 40030453 in words is "forty million, thirty thousand, four hundred fifty-three".