140828220 has 168 divisors, whose sum is σ = 478156896. Its totient is φ = 34618752.

The previous prime is 140828213. The next prime is 140828227. The reversal of 140828220 is 22828041.

140828220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (140828213) and next prime (140828227).

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 (140828227) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 189169 + ... + 189911.

It is an arithmetic number, because the mean of its divisors is an integer number (2846172).

Almost surely, 2^140828220 is an apocalyptic number.

140828220 is a gapful number since it is divisible by the number (10) 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 140828220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239078448).

140828220 is an abundant number, since it is smaller than the sum of its proper divisors (337328676).

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

140828220 is a wasteful number, since it uses less digits than its factorization.

140828220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 140828220 is about 11867.1066397838. The cubic root of 140828220 is about 520.2713327546.

The spelling of 140828220 in words is "one hundred forty million, eight hundred twenty-eight thousand, two hundred twenty".