40210871 has 2 divisors, whose sum is σ = 40210872. Its totient is φ = 40210870.

The previous prime is 40210861. The next prime is 40210879. The reversal of 40210871 is 17801204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40210871 - 2¹⁰ = 40209847 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40210879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20105435 + 20105436.

It is an arithmetic number, because the mean of its divisors is an integer number (20105436).

Almost surely, 2^40210871 is an apocalyptic number.

40210871 is a deficient number, since it is larger than the sum of its proper divisors (1).

40210871 is an equidigital number, since it uses as much as digits as its factorization.

40210871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 40210871 is about 6341.2042231740. The cubic root of 40210871 is about 342.5951102475.

The spelling of 40210871 in words is "forty million, two hundred ten thousand, eight hundred seventy-one".