402231433 has 4 divisors (see below), whose sum is σ = 402283728. Its totient is φ = 402179140.

The previous prime is 402231419. The next prime is 402231451. The reversal of 402231433 is 334132204.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402231433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402231833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12091 + ... + 30832.

It is an arithmetic number, because the mean of its divisors is an integer number (100570932).

Almost surely, 2^402231433 is an apocalyptic number.

It is an amenable number.

402231433 is a deficient number, since it is larger than the sum of its proper divisors (52295).

402231433 is an equidigital number, since it uses as much as digits as its factorization.

402231433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52294.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 402231433 is about 20055.7082398005. The cubic root of 402231433 is about 738.1738714112.

Adding to 402231433 its reverse (334132204), we get a palindrome (736363637).

The spelling of 402231433 in words is "four hundred two million, two hundred thirty-one thousand, four hundred thirty-three".