400230433 has 2 divisors, whose sum is σ = 400230434. Its totient is φ = 400230432.

The previous prime is 400230431. The next prime is 400230449. The reversal of 400230433 is 334032004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267911424 + 132319009 = 16368^2 + 11503^2 .

It is a cyclic number.

It is not a de Polignac number, because 400230433 - 2¹ = 400230431 is a prime.

It is a super-4 number, since 4×400230433⁴ (a number of 36 digits) contains 4444 as substring.

Together with 400230431, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 400230433.

It is not a weakly prime, because it can be changed into another prime (400230431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200115216 + 200115217.

It is an arithmetic number, because the mean of its divisors is an integer number (200115217).

Almost surely, 2^400230433 is an apocalyptic number.

It is an amenable number.

400230433 is a deficient number, since it is larger than the sum of its proper divisors (1).

400230433 is an equidigital number, since it uses as much as digits as its factorization.

400230433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 400230433 is about 20005.7599955613. The cubic root of 400230433 is about 736.9477596391.

Adding to 400230433 its reverse (334032004), we get a palindrome (734262437).

The spelling of 400230433 in words is "four hundred million, two hundred thirty thousand, four hundred thirty-three".