224891357 has 4 divisors (see below), whose sum is σ = 226881660. Its totient is φ = 222901056.

The previous prime is 224891339. The next prime is 224891371. The reversal of 224891357 is 753198422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59151481 + 165739876 = 7691^2 + 12874^2 .

It is a cyclic number.

It is not a de Polignac number, because 224891357 - 2¹⁰ = 224890333 is a prime.

It is a super-2 number, since 2×224891357² = 101152244906602898, 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 (224891057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994982 + ... + 995207.

It is an arithmetic number, because the mean of its divisors is an integer number (56720415).

Almost surely, 2^224891357 is an apocalyptic number.

It is an amenable number.

224891357 is a deficient number, since it is larger than the sum of its proper divisors (1990303).

224891357 is a wasteful number, since it uses less digits than its factorization.

224891357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990302.

The product of its digits is 120960, while the sum is 41.

The square root of 224891357 is about 14996.3781294018. The cubic root of 224891357 is about 608.1222891787.

The spelling of 224891357 in words is "two hundred twenty-four million, eight hundred ninety-one thousand, three hundred fifty-seven".