402433 has 4 divisors (see below), whose sum is σ = 416340. Its totient is φ = 388528.

The previous prime is 402419. The next prime is 402443. The reversal of 402433 is 334204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107584 + 294849 = 328^2 + 543^2 .

It is a cyclic number.

It is not a de Polignac number, because 402433 - 2¹³ = 394241 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (402403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6910 + ... + 6967.

It is an arithmetic number, because the mean of its divisors is an integer number (104085).

It is a Proth number, since it is equal to 393 ⋅ 2¹⁰ + 1 and 393 < 2¹⁰.

2⁴⁰²⁴³³ is an apocalyptic number.

It is an amenable number.

402433 is a deficient number, since it is larger than the sum of its proper divisors (13907).

402433 is a wasteful number, since it uses less digits than its factorization.

402433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13906.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 402433 is about 634.3760714277. The cubic root of 402433 is about 73.8297155863.

Adding to 402433 its reverse (334204), we get a palindrome (736637).

The spelling of 402433 in words is "four hundred two thousand, four hundred thirty-three".