40353343 has 4 divisors (see below), whose sum is σ = 40366528. Its totient is φ = 40340160.

The previous prime is 40353331. The next prime is 40353373. The reversal of 40353343 is 34335304.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40353343 - 2⁵ = 40353311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40353323) 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, 655 + ... + 9007.

It is an arithmetic number, because the mean of its divisors is an integer number (10091632).

Almost surely, 2^40353343 is an apocalyptic number.

40353343 is a deficient number, since it is larger than the sum of its proper divisors (13185).

40353343 is an equidigital number, since it uses as much as digits as its factorization.

40353343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13184.

The product of its (nonzero) digits is 6480, while the sum is 25.

The square root of 40353343 is about 6352.4281184442. The cubic root of 40353343 is about 342.9992520107. Note that the first 3 decimals are identical.

Adding to 40353343 its reverse (34335304), we get a palindrome (74688647).

The spelling of 40353343 in words is "forty million, three hundred fifty-three thousand, three hundred forty-three".