403489 has 8 divisors (see below), whose sum is σ = 430272. Its totient is φ = 377520.

The previous prime is 403483. The next prime is 403499. The reversal of 403489 is 984304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 403489 - 2¹⁷ = 272417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054 + ... + 1384.

It is an arithmetic number, because the mean of its divisors is an integer number (53784).

2⁴⁰³⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

403489 is a deficient number, since it is larger than the sum of its proper divisors (26783).

403489 is a wasteful number, since it uses less digits than its factorization.

403489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 403489 is about 635.2078400020. The cubic root of 403489 is about 73.8942365420.

The spelling of 403489 in words is "four hundred three thousand, four hundred eighty-nine".