40201879 has 2 divisors, whose sum is σ = 40201880. Its totient is φ = 40201878.

The previous prime is 40201877. The next prime is 40201919. The reversal of 40201879 is 97810204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40201879 - 2¹ = 40201877 is a prime.

Together with 40201877, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40201879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40201877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20100939 + 20100940.

It is an arithmetic number, because the mean of its divisors is an integer number (20100940).

Almost surely, 2^40201879 is an apocalyptic number.

40201879 is a deficient number, since it is larger than the sum of its proper divisors (1).

40201879 is an equidigital number, since it uses as much as digits as its factorization.

40201879 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 40201879 is about 6340.4951699374. The cubic root of 40201879 is about 342.5695711763.

The spelling of 40201879 in words is "forty million, two hundred one thousand, eight hundred seventy-nine".