40080379 has 2 divisors, whose sum is σ = 40080380. Its totient is φ = 40080378.

The previous prime is 40080377. The next prime is 40080389. The reversal of 40080379 is 97308004.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40080379 - 2¹ = 40080377 is a prime.

Together with 40080377, 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 40080379.

It is not a weakly prime, because it can be changed into another prime (40080371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20040189 + 20040190.

It is an arithmetic number, because the mean of its divisors is an integer number (20040190).

Almost surely, 2^40080379 is an apocalyptic number.

40080379 is a deficient number, since it is larger than the sum of its proper divisors (1).

40080379 is an equidigital number, since it uses as much as digits as its factorization.

40080379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 40080379 is about 6330.9066491301. The cubic root of 40080379 is about 342.2241129927.

The spelling of 40080379 in words is "forty million, eighty thousand, three hundred seventy-nine".