40430353 has 2 divisors, whose sum is σ = 40430354. Its totient is φ = 40430352.

The previous prime is 40430339. The next prime is 40430359. The reversal of 40430353 is 35303404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40030929 + 399424 = 6327^2 + 632^2 .

It is a cyclic number.

It is not a de Polignac number, because 40430353 - 2⁹ = 40429841 is a prime.

It is a super-4 number, since 4×40430353⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (40430359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20215176 + 20215177.

It is an arithmetic number, because the mean of its divisors is an integer number (20215177).

Almost surely, 2^40430353 is an apocalyptic number.

It is an amenable number.

40430353 is a deficient number, since it is larger than the sum of its proper divisors (1).

40430353 is an equidigital number, since it uses as much as digits as its factorization.

40430353 is an evil number, because the sum of its binary digits is even.

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

The square root of 40430353 is about 6358.4866910296. The cubic root of 40430353 is about 343.2173057103.

Adding to 40430353 its reverse (35303404), we get a palindrome (75733757).

The spelling of 40430353 in words is "forty million, four hundred thirty thousand, three hundred fifty-three".