40326779 has 2 divisors, whose sum is σ = 40326780. Its totient is φ = 40326778.

The previous prime is 40326757. The next prime is 40326787. The reversal of 40326779 is 97762304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40326779 - 2¹² = 40322683 is a prime.

It is not a weakly prime, because it can be changed into another prime (40326719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20163389 + 20163390.

It is an arithmetic number, because the mean of its divisors is an integer number (20163390).

Almost surely, 2^40326779 is an apocalyptic number.

40326779 is a deficient number, since it is larger than the sum of its proper divisors (1).

40326779 is an equidigital number, since it uses as much as digits as its factorization.

40326779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 40326779 is about 6350.3369201957. The cubic root of 40326779 is about 342.9239717366.

The spelling of 40326779 in words is "forty million, three hundred twenty-six thousand, seven hundred seventy-nine".