224561623 has 24 divisors (see below), whose sum is σ = 267868080. Its totient is φ = 186600960.

The previous prime is 224561567. The next prime is 224561639. The reversal of 224561623 is 326165422.

It is not a de Polignac number, because 224561623 - 2¹⁷ = 224430551 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224562623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209533 + ... + 210601.

It is an arithmetic number, because the mean of its divisors is an integer number (11161170).

Almost surely, 2^224561623 is an apocalyptic number.

224561623 is a deficient number, since it is larger than the sum of its proper divisors (43306457).

224561623 is a wasteful number, since it uses less digits than its factorization.

224561623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219 (or 1206 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 224561623 is about 14985.3803088210. The cubic root of 224561623 is about 607.8249357113.

The spelling of 224561623 in words is "two hundred twenty-four million, five hundred sixty-one thousand, six hundred twenty-three".