40533413 has 4 divisors (see below), whose sum is σ = 41220480. Its totient is φ = 39846348.

The previous prime is 40533401. The next prime is 40533433. The reversal of 40533413 is 31433504.

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 not a de Polignac number, because 40533413 - 2⁴ = 40533397 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 (40533433) 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, 343445 + ... + 343562.

It is an arithmetic number, because the mean of its divisors is an integer number (10305120).

Almost surely, 2^40533413 is an apocalyptic number.

It is an amenable number.

40533413 is a deficient number, since it is larger than the sum of its proper divisors (687067).

40533413 is an equidigital number, since it uses as much as digits as its factorization.

40533413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687066.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 40533413 is about 6366.5856626610. The cubic root of 40533413 is about 343.5086871447.

Adding to 40533413 its reverse (31433504), we get a palindrome (71966917).

Subtracting from 40533413 its reverse (31433504), we obtain a palindrome (9099909).

The spelling of 40533413 in words is "forty million, five hundred thirty-three thousand, four hundred thirteen".