40913305 has 16 divisors (see below), whose sum is σ = 53393040. Its totient is φ = 29970432.

The previous prime is 40913303. The next prime is 40913363. The reversal of 40913305 is 50331904.

It can be written as a sum of positive squares in 8 ways, for example, as 831744 + 40081561 = 912^2 + 6331^2 .

It is a cyclic number.

It is not a de Polignac number, because 40913305 - 2¹ = 40913303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40913305.

It is not an unprimeable number, because it can be changed into a prime (40913303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3360 + ... + 9649.

It is an arithmetic number, because the mean of its divisors is an integer number (3337065).

Almost surely, 2^40913305 is an apocalyptic number.

It is an amenable number.

40913305 is a deficient number, since it is larger than the sum of its proper divisors (12479735).

40913305 is a wasteful number, since it uses less digits than its factorization.

40913305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13068.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 40913305 is about 6396.3509128252. The cubic root of 40913305 is about 344.5785092839.

It can be divided in two parts, 4091 and 3305, that added together give a square (7396 = 86²).

The spelling of 40913305 in words is "forty million, nine hundred thirteen thousand, three hundred five".