400070311 has 2 divisors, whose sum is σ = 400070312. Its totient is φ = 400070310.

The previous prime is 400070309. The next prime is 400070329. The reversal of 400070311 is 113070004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400070311 - 2¹ = 400070309 is a prime.

Together with 400070309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400070371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200035155 + 200035156.

It is an arithmetic number, because the mean of its divisors is an integer number (200035156).

Almost surely, 2^400070311 is an apocalyptic number.

400070311 is a deficient number, since it is larger than the sum of its proper divisors (1).

400070311 is an equidigital number, since it uses as much as digits as its factorization.

400070311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 400070311 is about 20001.7576977625. The cubic root of 400070311 is about 736.8494685219.

The spelling of 400070311 in words is "four hundred million, seventy thousand, three hundred eleven".