403402 has 4 divisors (see below), whose sum is σ = 605106. Its totient is φ = 201700.

The previous prime is 403391. The next prime is 403433. The reversal of 403402 is 204304.

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

It can be written as a sum of positive squares in only one way, i.e., 210681 + 192721 = 459^2 + 439^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100849 + ... + 100852.

2⁴⁰³⁴⁰² is an apocalyptic number.

403402 is a deficient number, since it is larger than the sum of its proper divisors (201704).

403402 is a wasteful number, since it uses less digits than its factorization.

403402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201703.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 403402 is about 635.1393547876. The cubic root of 403402 is about 73.8889251533. Note that the first 3 decimals are identical.

Adding to 403402 its reverse (204304), we get a palindrome (607706).

The spelling of 403402 in words is "four hundred three thousand, four hundred two", and thus it is an iban number.