224379397 has 4 divisors (see below), whose sum is σ = 244777536. Its totient is φ = 203981260.

The previous prime is 224379391. The next prime is 224379403. The reversal of 224379397 is 793973422.

It is a happy number.

224379397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (224379391) and next prime (224379403).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224379397 is a prime.

It is a super-2 number, since 2×224379397² = 100692227596167218, 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 (224379391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10199053 + ... + 10199074.

It is an arithmetic number, because the mean of its divisors is an integer number (61194384).

Almost surely, 2^224379397 is an apocalyptic number.

It is an amenable number.

224379397 is a deficient number, since it is larger than the sum of its proper divisors (20398139).

224379397 is a wasteful number, since it uses less digits than its factorization.

224379397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20398138.

The product of its digits is 571536, while the sum is 46.

The square root of 224379397 is about 14979.2989488828. The cubic root of 224379397 is about 607.6604797685.

The spelling of 224379397 in words is "two hundred twenty-four million, three hundred seventy-nine thousand, three hundred ninety-seven".