400715233 has 2 divisors, whose sum is σ = 400715234. Its totient is φ = 400715232.

The previous prime is 400715219. The next prime is 400715257. The reversal of 400715233 is 332517004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 390773824 + 9941409 = 19768^2 + 3153^2 .

It is a cyclic number.

It is not a de Polignac number, because 400715233 - 2⁵ = 400715201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400715198 and 400715207.

It is not a weakly prime, because it can be changed into another prime (400715933) 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, 200357616 + 200357617.

It is an arithmetic number, because the mean of its divisors is an integer number (200357617).

Almost surely, 2^400715233 is an apocalyptic number.

It is an amenable number.

400715233 is a deficient number, since it is larger than the sum of its proper divisors (1).

400715233 is an equidigital number, since it uses as much as digits as its factorization.

400715233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 400715233 is about 20017.8728390406. The cubic root of 400715233 is about 737.2451950551.

The spelling of 400715233 in words is "four hundred million, seven hundred fifteen thousand, two hundred thirty-three".