224290388 has 48 divisors (see below), whose sum is σ = 476098560. Its totient is φ = 90371424.

The previous prime is 224290369. The next prime is 224290393. The reversal of 224290388 is 883092422.

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, 35045 + ... + 40947.

It is an arithmetic number, because the mean of its divisors is an integer number (9918720).

Almost surely, 2^224290388 is an apocalyptic number.

224290388 is a gapful number since it is divisible by the number (28) 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 224290388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238049280).

224290388 is an abundant number, since it is smaller than the sum of its proper divisors (251808172).

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

224290388 is a wasteful number, since it uses less digits than its factorization.

224290388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5996 (or 5994 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 224290388 is about 14976.3275872291. The cubic root of 224290388 is about 607.5801182530.

The spelling of 224290388 in words is "two hundred twenty-four million, two hundred ninety thousand, three hundred eighty-eight".