7990224 has 80 divisors (see below), whose sum is σ = 23183040. Its totient is φ = 2350080.

The previous prime is 7990183. The next prime is 7990231. The reversal of 7990224 is 4220997.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19332 + ... + 19740.

It is an arithmetic number, because the mean of its divisors is an integer number (289788).

Almost surely, 2^7990224 is an apocalyptic number.

7990224 is a gapful number since it is divisible by the number (74) 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 7990224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11591520).

7990224 is an abundant number, since it is smaller than the sum of its proper divisors (15192816).

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

7990224 is a wasteful number, since it uses less digits than its factorization.

7990224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 7990224 is about 2826.6984274945. The cubic root of 7990224 is about 199.9185001267.

Adding to 7990224 its reverse (4220997), we get a palindrome (12211221).

The spelling of 7990224 in words is "seven million, nine hundred ninety thousand, two hundred twenty-four".