400056463 has 2 divisors, whose sum is σ = 400056464. Its totient is φ = 400056462.

The previous prime is 400056451. The next prime is 400056467. The reversal of 400056463 is 364650004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400056463 - 2²¹ = 397959311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400056467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200028231 + 200028232.

It is an arithmetic number, because the mean of its divisors is an integer number (200028232).

Almost surely, 2^400056463 is an apocalyptic number.

400056463 is a deficient number, since it is larger than the sum of its proper divisors (1).

400056463 is an equidigital number, since it uses as much as digits as its factorization.

400056463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 400056463 is about 20001.4115251899. The cubic root of 400056463 is about 736.8409666754.

The spelling of 400056463 in words is "four hundred million, fifty-six thousand, four hundred sixty-three".