400734473 has 2 divisors, whose sum is σ = 400734474. Its totient is φ = 400734472.

The previous prime is 400734443. The next prime is 400734487. The reversal of 400734473 is 374437004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319229689 + 81504784 = 17867^2 + 9028^2 .

It is a cyclic number.

It is not a de Polignac number, because 400734473 - 2⁶ = 400734409 is a prime.

It is not a weakly prime, because it can be changed into another prime (400734413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200367236 + 200367237.

It is an arithmetic number, because the mean of its divisors is an integer number (200367237).

Almost surely, 2^400734473 is an apocalyptic number.

It is an amenable number.

400734473 is a deficient number, since it is larger than the sum of its proper divisors (1).

400734473 is an equidigital number, since it uses as much as digits as its factorization.

400734473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 32.

The square root of 400734473 is about 20018.3534038142. The cubic root of 400734473 is about 737.2569942659.

The spelling of 400734473 in words is "four hundred million, seven hundred thirty-four thousand, four hundred seventy-three".