40556245 has 16 divisors (see below), whose sum is σ = 51489792. Its totient is φ = 30602880.

The previous prime is 40556233. The next prime is 40556249. The reversal of 40556245 is 54265504.

It is not a de Polignac number, because 40556245 - 2⁹ = 40555733 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 (40556249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5980 + ... + 10810.

It is an arithmetic number, because the mean of its divisors is an integer number (3218112).

Almost surely, 2^40556245 is an apocalyptic number.

It is an amenable number.

40556245 is a deficient number, since it is larger than the sum of its proper divisors (10933547).

40556245 is a wasteful number, since it uses less digits than its factorization.

40556245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4932.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 40556245 is about 6368.3785220415. The cubic root of 40556245 is about 343.5731731872.

The spelling of 40556245 in words is "forty million, five hundred fifty-six thousand, two hundred forty-five".