40348379 has 2 divisors, whose sum is σ = 40348380. Its totient is φ = 40348378.

The previous prime is 40348331. The next prime is 40348409. The reversal of 40348379 is 97384304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40348379 - 2²⁰ = 39299803 is a prime.

It is not a weakly prime, because it can be changed into another prime (40348079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20174189 + 20174190.

It is an arithmetic number, because the mean of its divisors is an integer number (20174190).

Almost surely, 2^40348379 is an apocalyptic number.

40348379 is a deficient number, since it is larger than the sum of its proper divisors (1).

40348379 is an equidigital number, since it uses as much as digits as its factorization.

40348379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 40348379 is about 6352.0373896884. The cubic root of 40348379 is about 342.9851869380.

The spelling of 40348379 in words is "forty million, three hundred forty-eight thousand, three hundred seventy-nine".