224309664 has 144 divisors (see below), whose sum is σ = 668697120. Its totient is φ = 71232000.

The previous prime is 224309653. The next prime is 224309671. The reversal of 224309664 is 466903422.

224309664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 893539 + ... + 893789.

It is an arithmetic number, because the mean of its divisors is an integer number (4643730).

Almost surely, 2^224309664 is an apocalyptic number.

224309664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224309664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334348560).

224309664 is an abundant number, since it is smaller than the sum of its proper divisors (444387456).

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

224309664 is a wasteful number, since it uses less digits than its factorization.

224309664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 224309664 is about 14976.9711223598. The cubic root of 224309664 is about 607.5975233366.

The spelling of 224309664 in words is "two hundred twenty-four million, three hundred nine thousand, six hundred sixty-four".