40380571 has 24 divisors (see below), whose sum is σ = 52883712. Its totient is φ = 29898000.

The previous prime is 40380563. The next prime is 40380581. The reversal of 40380571 is 17508304.

It is not a de Polignac number, because 40380571 - 2³ = 40380563 is a prime.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40380581) 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 23 ways as a sum of consecutive naturals, for example, 267346 + ... + 267496.

It is an arithmetic number, because the mean of its divisors is an integer number (2203488).

Almost surely, 2^40380571 is an apocalyptic number.

40380571 is a deficient number, since it is larger than the sum of its proper divisors (12503141).

40380571 is a wasteful number, since it uses less digits than its factorization.

40380571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 40380571 is about 6354.5708745752. The cubic root of 40380571 is about 343.0763797298.

Adding to 40380571 its reverse (17508304), we get a palindrome (57888875).

The spelling of 40380571 in words is "forty million, three hundred eighty thousand, five hundred seventy-one".