402733 has 4 divisors (see below), whose sum is σ = 404028. Its totient is φ = 401440.

The previous prime is 402697. The next prime is 402739. The reversal of 402733 is 337204.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 64009 + 338724 = 253^2 + 582^2 .

It is a cyclic number.

It is not a de Polignac number, because 402733 - 2⁹ = 402221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402739) 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, 135 + ... + 907.

It is an arithmetic number, because the mean of its divisors is an integer number (101007).

2⁴⁰²⁷³³ is an apocalyptic number.

It is an amenable number.

402733 is a deficient number, since it is larger than the sum of its proper divisors (1295).

402733 is an equidigital number, since it uses as much as digits as its factorization.

402733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 402733 is about 634.6124801798. The cubic root of 402733 is about 73.8480568698.

Adding to 402733 its reverse (337204), we get a palindrome (739937).

The spelling of 402733 in words is "four hundred two thousand, seven hundred thirty-three".