40618379 has 2 divisors, whose sum is σ = 40618380. Its totient is φ = 40618378.

The previous prime is 40618363. The next prime is 40618393. The reversal of 40618379 is 97381604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40618379 - 2⁴ = 40618363 is a prime.

It is a Chen prime.

It is equal to p_2468954 and since 40618379 and 2468954 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (40618309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20309189 + 20309190.

It is an arithmetic number, because the mean of its divisors is an integer number (20309190).

Almost surely, 2^40618379 is an apocalyptic number.

40618379 is a deficient number, since it is larger than the sum of its proper divisors (1).

40618379 is an equidigital number, since it uses as much as digits as its factorization.

40618379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 40618379 is about 6373.2549768544. The cubic root of 40618379 is about 343.7485402032.

The spelling of 40618379 in words is "forty million, six hundred eighteen thousand, three hundred seventy-nine".