403245 has 32 divisors (see below), whose sum is σ = 748800. Its totient is φ = 205632.

The previous prime is 403243. The next prime is 403253. The reversal of 403245 is 542304.

It is a happy number.

It is not a de Polignac number, because 403245 - 2¹ = 403243 is a prime.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 403245.

It is not an unprimeable number, because it can be changed into a prime (403241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3864 + ... + 3966.

It is an arithmetic number, because the mean of its divisors is an integer number (23400).

2⁴⁰³²⁴⁵ is an apocalyptic number.

403245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

403245 is a deficient number, since it is larger than the sum of its proper divisors (345555).

403245 is a wasteful number, since it uses less digits than its factorization.

403245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 403245 is about 635.0157478362. The cubic root of 403245 is about 73.8793383007.

Adding to 403245 its reverse (542304), we get a palindrome (945549).

The spelling of 403245 in words is "four hundred three thousand, two hundred forty-five".