220191480 has 256 divisors, whose sum is σ = 793152000. Its totient is φ = 54134784.

The previous prime is 220191479. The next prime is 220191487. The reversal of 220191480 is 84191022.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220191487) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1230031 + ... + 1230209.

It is an arithmetic number, because the mean of its divisors is an integer number (3098250).

Almost surely, 2^220191480 is an apocalyptic number.

220191480 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 220191480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396576000).

220191480 is an abundant number, since it is smaller than the sum of its proper divisors (572960520).

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

220191480 is a wasteful number, since it uses less digits than its factorization.

220191480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 220191480 is about 14838.8503597819. The cubic root of 220191480 is about 603.8561635771.

The spelling of 220191480 in words is "two hundred twenty million, one hundred ninety-one thousand, four hundred eighty".