224997750 has 160 divisors (see below), whose sum is σ = 646918272. Its totient is φ = 58320000.

The previous prime is 224997727. The next prime is 224997763. The reversal of 224997750 is 57799422.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 224997696 and 224997705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 830115 + ... + 830385.

Almost surely, 2^224997750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224997750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323459136).

224997750 is an abundant number, since it is smaller than the sum of its proper divisors (421920522).

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

224997750 is a wasteful number, since it uses less digits than its factorization.

224997750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 224997750 is about 14999.9249998125. The cubic root of 224997750 is about 608.2181721499.

It can be divided in two parts, 2249 and 97750, that added together give a palindrome (99999).

The spelling of 224997750 in words is "two hundred twenty-four million, nine hundred ninety-seven thousand, seven hundred fifty".