403472 has 20 divisors (see below), whose sum is σ = 791616. Its totient is φ = 199200.

The previous prime is 403439. The next prime is 403483. The reversal of 403472 is 274304.

It is a happy number.

It is an unprimeable number.

403472 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2333 + ... + 2499.

2⁴⁰³⁴⁷² is an apocalyptic number.

It is an amenable number.

403472 is a deficient number, since it is larger than the sum of its proper divisors (388144).

403472 is a wasteful number, since it uses less digits than its factorization.

403472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 403472 is about 635.1944584141. The cubic root of 403472 is about 73.8931987444.

Adding to 403472 its reverse (274304), we get a palindrome (677776).

The spelling of 403472 in words is "four hundred three thousand, four hundred seventy-two", and thus it is an iban number.