40535457 has 16 divisors (see below), whose sum is σ = 55073088. Its totient is φ = 26515520.

The previous prime is 40535447. The next prime is 40535489. The reversal of 40535457 is 75453504.

It is a cyclic number.

It is not a de Polignac number, because 40535457 - 2⁶ = 40535393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40535447) 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, 42607 + ... + 43547.

It is an arithmetic number, because the mean of its divisors is an integer number (3442068).

Almost surely, 2^40535457 is an apocalyptic number.

It is an amenable number.

40535457 is a deficient number, since it is larger than the sum of its proper divisors (14537631).

40535457 is a wasteful number, since it uses less digits than its factorization.

40535457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200.

The product of its (nonzero) digits is 42000, while the sum is 33.

The square root of 40535457 is about 6366.7461862399. The cubic root of 40535457 is about 343.5144611461.

The spelling of 40535457 in words is "forty million, five hundred thirty-five thousand, four hundred fifty-seven".