224984709 has 14 divisors (see below), whose sum is σ = 337323846. Its totient is φ = 149989320.

The previous prime is 224984707. The next prime is 224984743. The reversal of 224984709 is 907489422.

It can be written as a sum of positive squares in only one way, i.e., 154927809 + 70056900 = 12447^2 + 8370^2 .

It is not a de Polignac number, because 224984709 - 2¹ = 224984707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224984707) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 153582 + ... + 155039.

Almost surely, 2^224984709 is an apocalyptic number.

It is an amenable number.

224984709 is a deficient number, since it is larger than the sum of its proper divisors (112339137).

224984709 is an frugal number, since it uses more digits than its factorization.

224984709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308639 (or 308624 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 224984709 is about 14999.4902913399. The cubic root of 224984709 is about 608.2064210303.

The spelling of 224984709 in words is "two hundred twenty-four million, nine hundred eighty-four thousand, seven hundred nine".