222499648 has 112 divisors (see below), whose sum is σ = 536187904. Its totient is φ = 89579520.

The previous prime is 222499597. The next prime is 222499657. The reversal of 222499648 is 846994222.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 222499598 and 222499607.

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, 513640 + ... + 514072.

It is an arithmetic number, because the mean of its divisors is an integer number (4787392).

Almost surely, 2^222499648 is an apocalyptic number.

222499648 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 222499648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268093952).

222499648 is an abundant number, since it is smaller than the sum of its proper divisors (313688256).

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

222499648 is a wasteful number, since it uses less digits than its factorization.

222499648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 510 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 222499648 is about 14916.4220911048. The cubic root of 222499648 is about 605.9588175059.

The spelling of 222499648 in words is "two hundred twenty-two million, four hundred ninety-nine thousand, six hundred forty-eight".