40404535 has 4 divisors (see below), whose sum is σ = 48485448. Its totient is φ = 32323624.

The previous prime is 40404527. The next prime is 40404547. The reversal of 40404535 is 53540404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40404535 - 2³ = 40404527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4040449 + ... + 4040458.

It is an arithmetic number, because the mean of its divisors is an integer number (12121362).

Almost surely, 2^40404535 is an apocalyptic number.

40404535 is a deficient number, since it is larger than the sum of its proper divisors (8080913).

40404535 is an equidigital number, since it uses as much as digits as its factorization.

40404535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8080912.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 40404535 is about 6356.4561667646. The cubic root of 40404535 is about 343.1442329601.

Adding to 40404535 its reverse (53540404), we get a palindrome (93944939).

The spelling of 40404535 in words is "forty million, four hundred four thousand, five hundred thirty-five".