40354405 has 32 divisors (see below), whose sum is σ = 61544448. Its totient is φ = 24710400.

The previous prime is 40354387. The next prime is 40354409. The reversal of 40354405 is 50445304.

40354405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40354405 - 2¹¹ = 40352357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40354405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40354409) 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 in 31 ways as a sum of consecutive naturals, for example, 12675 + ... + 15535.

It is an arithmetic number, because the mean of its divisors is an integer number (1923264).

Almost surely, 2^40354405 is an apocalyptic number.

It is an amenable number.

40354405 is a deficient number, since it is larger than the sum of its proper divisors (21190043).

40354405 is a wasteful number, since it uses less digits than its factorization.

40354405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917.

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

The square root of 40354405 is about 6352.5117079782. The cubic root of 40354405 is about 343.0022609478.

Adding to 40354405 its reverse (50445304), we get a palindrome (90799709).

The spelling of 40354405 in words is "forty million, three hundred fifty-four thousand, four hundred five".