224749392 has 80 divisors (see below), whose sum is σ = 671623680. Its totient is φ = 63432576.

The previous prime is 224749387. The next prime is 224749397. The reversal of 224749392 is 293947422.

224749392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (224749387) and next prime (224749397).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224749397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23859 + ... + 31917.

It is an arithmetic number, because the mean of its divisors is an integer number (8395296).

Almost surely, 2^224749392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224749392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335811840).

224749392 is an abundant number, since it is smaller than the sum of its proper divisors (446874288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

224749392 is a wasteful number, since it uses less digits than its factorization.

224749392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8160 (or 8154 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 224749392 is about 14991.6440726159. The cubic root of 224749392 is about 607.9943010777.

The spelling of 224749392 in words is "two hundred twenty-four million, seven hundred forty-nine thousand, three hundred ninety-two".