503402 has 4 divisors (see below), whose sum is σ = 755106. Its totient is φ = 251700.

The previous prime is 503389. The next prime is 503407. The reversal of 503402 is 204305.

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., 477481 + 25921 = 691^2 + 161^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 503402.

It is not an unprimeable number, because it can be changed into a prime (503407) by changing a digit.

503402 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, 125849 + ... + 125852.

2⁵⁰³⁴⁰² is an apocalyptic number.

503402 is a deficient number, since it is larger than the sum of its proper divisors (251704).

503402 is a wasteful number, since it uses less digits than its factorization.

503402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251703.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 503402 is about 709.5082804309. The cubic root of 503402 is about 79.5496571484.

Adding to 503402 its reverse (204305), we get a palindrome (707707).

The spelling of 503402 in words is "five hundred three thousand, four hundred two".