40555045 has 16 divisors (see below), whose sum is σ = 49916160. Its totient is φ = 31621824.

The previous prime is 40555019. The next prime is 40555087. The reversal of 40555045 is 54055504.

It is a cyclic number.

It is not a de Polignac number, because 40555045 - 2⁹ = 40554533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32167 + ... + 33403.

It is an arithmetic number, because the mean of its divisors is an integer number (3119760).

Almost surely, 2^40555045 is an apocalyptic number.

It is an amenable number.

40555045 is a deficient number, since it is larger than the sum of its proper divisors (9361115).

40555045 is a wasteful number, since it uses less digits than its factorization.

40555045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 40555045 is about 6368.2843058394. The cubic root of 40555045 is about 343.5697845445.

The spelling of 40555045 in words is "forty million, five hundred fifty-five thousand, forty-five".