224919 has 12 divisors (see below), whose sum is σ = 330616. Its totient is φ = 147312.

The previous prime is 224911. The next prime is 224921. The reversal of 224919 is 919422.

It is not a de Polignac number, because 224919 - 2³ = 224911 is a prime.

It is a super-2 number, since 2×224919² = 101177113122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 224892 and 224901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417 + ... + 789.

2²²⁴⁹¹⁹ is an apocalyptic number.

224919 is a deficient number, since it is larger than the sum of its proper divisors (105697).

224919 is a wasteful number, since it uses less digits than its factorization.

224919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 443 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 224919 is about 474.2562598427. The cubic root of 224919 is about 60.8147204373.

It can be divided in two parts, 22491 and 9, that added together give a square (22500 = 150²).

The spelling of 224919 in words is "two hundred twenty-four thousand, nine hundred nineteen".