40034545 has 4 divisors (see below), whose sum is σ = 48041460. Its totient is φ = 32027632.

The previous prime is 40034543. The next prime is 40034549. The reversal of 40034545 is 54543004.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6290064 + 33744481 = 2508^2 + 5809^2 .

It is a cyclic number.

It is not a de Polignac number, because 40034545 - 2¹ = 40034543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40034543) 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, 4003450 + ... + 4003459.

It is an arithmetic number, because the mean of its divisors is an integer number (12010365).

Almost surely, 2^40034545 is an apocalyptic number.

It is an amenable number.

40034545 is a deficient number, since it is larger than the sum of its proper divisors (8006915).

40034545 is an equidigital number, since it uses as much as digits as its factorization.

40034545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8006914.

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

The square root of 40034545 is about 6327.2857529908. The cubic root of 40034545 is about 342.0936128722.

Adding to 40034545 its reverse (54543004), we get a palindrome (94577549).

The spelling of 40034545 in words is "forty million, thirty-four thousand, five hundred forty-five".