830402 has 4 divisors (see below), whose sum is σ = 1245606. Its totient is φ = 415200.

The previous prime is 830387. The next prime is 830411. The reversal of 830402 is 204038.

830402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204038 = 2 ⋅102019.

It can be written as a sum of positive squares in only one way, i.e., 808201 + 22201 = 899^2 + 149^2 .

It is an unprimeable number.

830402 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207599 + ... + 207602.

2⁸³⁰⁴⁰² is an apocalyptic number.

830402 is a deficient number, since it is larger than the sum of its proper divisors (415204).

830402 is a wasteful number, since it uses less digits than its factorization.

830402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415203.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 830402 is about 911.2639573691. The cubic root of 830402 is about 93.9931336466.

The spelling of 830402 in words is "eight hundred thirty thousand, four hundred two".