40210879 has 2 divisors, whose sum is σ = 40210880. Its totient is φ = 40210878.

The previous prime is 40210871. The next prime is 40210889. The reversal of 40210879 is 97801204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40210879 - 2³ = 40210871 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40210879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40210871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20105439 + 20105440.

It is an arithmetic number, because the mean of its divisors is an integer number (20105440).

Almost surely, 2^40210879 is an apocalyptic number.

40210879 is a deficient number, since it is larger than the sum of its proper divisors (1).

40210879 is an equidigital number, since it uses as much as digits as its factorization.

40210879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 40210879 is about 6341.2048539690. The cubic root of 40210879 is about 342.5951329674.

The spelling of 40210879 in words is "forty million, two hundred ten thousand, eight hundred seventy-nine".