613402 has 4 divisors (see below), whose sum is σ = 920106. Its totient is φ = 306700.

The previous prime is 613381. The next prime is 613421. The reversal of 613402 is 204316.

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., 606841 + 6561 = 779^2 + 81^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153349 + ... + 153352.

2⁶¹³⁴⁰² is an apocalyptic number.

613402 is a deficient number, since it is larger than the sum of its proper divisors (306704).

613402 is a wasteful number, since it uses less digits than its factorization.

613402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306703.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 613402 is about 783.1998467824. The cubic root of 613402 is about 84.9666305001.

Adding to 613402 its reverse (204316), we get a palindrome (817718).

The spelling of 613402 in words is "six hundred thirteen thousand, four hundred two".