224739381 has 8 divisors (see below), whose sum is σ = 299931040. Its totient is φ = 149686992.

The previous prime is 224739379. The next prime is 224739419. The reversal of 224739381 is 183937422.

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

It is not a de Polignac number, because 224739381 - 2¹ = 224739379 is a prime.

It is a super-2 number, since 2×224739381² = 101015578744526322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224739331) 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, 30991 + ... + 37548.

It is an arithmetic number, because the mean of its divisors is an integer number (37491380).

Almost surely, 2^224739381 is an apocalyptic number.

It is an amenable number.

224739381 is a deficient number, since it is larger than the sum of its proper divisors (75191659).

224739381 is a wasteful number, since it uses less digits than its factorization.

224739381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69635.

The product of its digits is 72576, while the sum is 39.

The square root of 224739381 is about 14991.3101829026. The cubic root of 224739381 is about 607.9852736579.

The spelling of 224739381 in words is "two hundred twenty-four million, seven hundred thirty-nine thousand, three hundred eighty-one".