224021070 has 192 divisors, whose sum is σ = 759507840. Its totient is φ = 44457984.

The previous prime is 224021069. The next prime is 224021071. The reversal of 224021070 is 70120422.

224021070 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 (224021069) and next prime (224021071).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224021071) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 138426 + ... + 140034.

It is an arithmetic number, because the mean of its divisors is an integer number (3955770).

Almost surely, 2^224021070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224021070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379753920).

224021070 is an abundant number, since it is smaller than the sum of its proper divisors (535486770).

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

224021070 is a wasteful number, since it uses less digits than its factorization.

224021070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659 (or 1656 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 224021070 is about 14967.3334298398. Note that the first 3 decimals coincide. The cubic root of 224021070 is about 607.3368357215.

Adding to 224021070 its reverse (70120422), we get a palindrome (294141492).

The spelling of 224021070 in words is "two hundred twenty-four million, twenty-one thousand, seventy".