220825140 has 96 divisors (see below), whose sum is σ = 644112000. Its totient is φ = 56458752.

The previous prime is 220825133. The next prime is 220825147. The reversal of 220825140 is 41528022.

It is an interprime number because it is at equal distance from previous prime (220825133) and next prime (220825147).

It is a self number, because there is not a number n which added to its sum of digits gives 220825140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220825147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 311106 + ... + 311814.

It is an arithmetic number, because the mean of its divisors is an integer number (6709500).

Almost surely, 2^220825140 is an apocalyptic number.

220825140 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 220825140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322056000).

220825140 is an abundant number, since it is smaller than the sum of its proper divisors (423286860).

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

220825140 is a wasteful number, since it uses less digits than its factorization.

220825140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 220825140 is about 14860.1864052912. The cubic root of 220825140 is about 604.4348614648.

The spelling of 220825140 in words is "two hundred twenty million, eight hundred twenty-five thousand, one hundred forty".