220392000 has 168 divisors, whose sum is σ = 788636472. Its totient is φ = 58752000.

The previous prime is 220391971. The next prime is 220392013. The reversal of 220392000 is 293022.

It can be written as a sum of positive squares in 4 ways, for example, as 1115136 + 219276864 = 1056^2 + 14808^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70470 + ... + 73530.

Almost surely, 2^220392000 is an apocalyptic number.

220392000 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 220392000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394318236).

220392000 is an abundant number, since it is smaller than the sum of its proper divisors (568244472).

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

220392000 is a wasteful number, since it uses less digits than its factorization.

220392000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094 (or 3071 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 220392000 is about 14845.6054103563. The cubic root of 220392000 is about 604.0394109044.

The spelling of 220392000 in words is "two hundred twenty million, three hundred ninety-two thousand".