223028186940 has 192 divisors, whose sum is σ = 747713971200. Its totient is φ = 54864407808.

The previous prime is 223028186917. The next prime is 223028186963. The reversal of 223028186940 is 49681820322.

It is an interprime number because it is at equal distance from previous prime (223028186917) and next prime (223028186963).

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

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, 12086241 + ... + 12104679.

It is an arithmetic number, because the mean of its divisors is an integer number (3894343600).

Almost surely, 2^223028186940 is an apocalyptic number.

223028186940 is a gapful number since it is divisible by the number (20) 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 223028186940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373856985600).

223028186940 is an abundant number, since it is smaller than the sum of its proper divisors (524685784260).

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

223028186940 is a wasteful number, since it uses less digits than its factorization.

223028186940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20193 (or 20185 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 223028186940 in words is "two hundred twenty-three billion, twenty-eight million, one hundred eighty-six thousand, nine hundred forty".