224289870 has 128 divisors (see below), whose sum is σ = 658022400. Its totient is φ = 47786112.

The previous prime is 224289833. The next prime is 224289883. The reversal of 224289870 is 78982422.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 266911 + ... + 267749.

It is an arithmetic number, because the mean of its divisors is an integer number (5140800).

Almost surely, 2^224289870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224289870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329011200).

224289870 is an abundant number, since it is smaller than the sum of its proper divisors (433732530).

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

224289870 is a wasteful number, since it uses less digits than its factorization.

224289870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 224289870 is about 14976.3102932598. The cubic root of 224289870 is about 607.5796505160.

The spelling of 224289870 in words is "two hundred twenty-four million, two hundred eighty-nine thousand, eight hundred seventy".