400414247 has 2 divisors, whose sum is σ = 400414248. Its totient is φ = 400414246.

The previous prime is 400414211. The next prime is 400414253. The reversal of 400414247 is 742414004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400414247 - 2¹⁴ = 400397863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400474247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200207123 + 200207124.

It is an arithmetic number, because the mean of its divisors is an integer number (200207124).

Almost surely, 2^400414247 is an apocalyptic number.

400414247 is a deficient number, since it is larger than the sum of its proper divisors (1).

400414247 is an equidigital number, since it uses as much as digits as its factorization.

400414247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 400414247 is about 20010.3534951285. The cubic root of 400414247 is about 737.0605618082.

The spelling of 400414247 in words is "four hundred million, four hundred fourteen thousand, two hundred forty-seven".