40465213 has 2 divisors, whose sum is σ = 40465214. Its totient is φ = 40465212.

The previous prime is 40465189. The next prime is 40465223. The reversal of 40465213 is 31256404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36942084 + 3523129 = 6078^2 + 1877^2 .

It is a cyclic number.

It is not a de Polignac number, because 40465213 - 2⁵ = 40465181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40465223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20232606 + 20232607.

It is an arithmetic number, because the mean of its divisors is an integer number (20232607).

Almost surely, 2^40465213 is an apocalyptic number.

It is an amenable number.

40465213 is a deficient number, since it is larger than the sum of its proper divisors (1).

40465213 is an equidigital number, since it uses as much as digits as its factorization.

40465213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 40465213 is about 6361.2273186862. The cubic root of 40465213 is about 343.3159207139.

The spelling of 40465213 in words is "forty million, four hundred sixty-five thousand, two hundred thirteen".