40571361 has 10 divisors (see below), whose sum is σ = 60606722. Its totient is φ = 27047520.

The previous prime is 40571353. The next prime is 40571369. The reversal of 40571361 is 16317504.

It is an interprime number because it is at equal distance from previous prime (40571353) and next prime (40571369).

It can be written as a sum of positive squares in only one way, i.e., 33281361 + 7290000 = 5769^2 + 2700^2 .

It is not a de Polignac number, because 40571361 - 2³ = 40571353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40571369) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 250360 + ... + 250521.

Almost surely, 2^40571361 is an apocalyptic number.

It is an amenable number.

40571361 is a deficient number, since it is larger than the sum of its proper divisors (20035361).

40571361 is an equidigital number, since it uses as much as digits as its factorization.

40571361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500893 (or 500884 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 40571361 is about 6369.5652127912. The cubic root of 40571361 is about 343.6158530670.

Adding to 40571361 its reverse (16317504), we get a palindrome (56888865).

The spelling of 40571361 in words is "forty million, five hundred seventy-one thousand, three hundred sixty-one".