403455 has 16 divisors (see below), whose sum is σ = 695520. Its totient is φ = 198528.

The previous prime is 403439. The next prime is 403483. The reversal of 403455 is 554304.

It is a happy number.

It is not a de Polignac number, because 403455 - 2⁴ = 403439 is a prime.

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 403455.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840 + ... + 1229.

It is an arithmetic number, because the mean of its divisors is an integer number (43470).

2⁴⁰³⁴⁵⁵ is an apocalyptic number.

403455 is a deficient number, since it is larger than the sum of its proper divisors (292065).

403455 is a wasteful number, since it uses less digits than its factorization.

403455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 403455 is about 635.1810765443. The cubic root of 403455 is about 73.8921609177.

Adding to 403455 its reverse (554304), we get a palindrome (957759).

It can be divided in two parts, 403 and 455, that added together give a palindrome (858).

The spelling of 403455 in words is "four hundred three thousand, four hundred fifty-five".