40046571 has 6 divisors (see below), whose sum is σ = 57845060. Its totient is φ = 26697708.

The previous prime is 40046557. The next prime is 40046579. The reversal of 40046571 is 17564004.

40046571 is a `hidden beast` number, since 4 + 0 + 0 + 4 + 657 + 1 = 666.

It is not a de Polignac number, because 40046571 - 2¹⁰ = 40045547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40046579) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2224801 + ... + 2224818.

Almost surely, 2^40046571 is an apocalyptic number.

40046571 is a deficient number, since it is larger than the sum of its proper divisors (17798489).

40046571 is a wasteful number, since it uses less digits than its factorization.

40046571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4449625 (or 4449622 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 40046571 is about 6328.2360101374. The cubic root of 40046571 is about 342.1278633420.

It can be divided in two parts, 400 and 46571, that added together give a triangular number (46971 = T₃₀₆).

The spelling of 40046571 in words is "forty million, forty-six thousand, five hundred seventy-one".