140395220 has 96 divisors (see below), whose sum is σ = 358041600. Its totient is φ = 45201024.

The previous prime is 140395219. The next prime is 140395223. The reversal of 140395220 is 22593041.

It is a self number, because there is not a number n which added to its sum of digits gives 140395220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140395223) 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, 189611 + ... + 190349.

It is an arithmetic number, because the mean of its divisors is an integer number (3729600).

Almost surely, 2^140395220 is an apocalyptic number.

140395220 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 140395220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179020800).

140395220 is an abundant number, since it is smaller than the sum of its proper divisors (217646380).

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

140395220 is a wasteful number, since it uses less digits than its factorization.

140395220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 835 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 140395220 is about 11848.8488892381. The cubic root of 140395220 is about 519.7375648144.

The spelling of 140395220 in words is "one hundred forty million, three hundred ninety-five thousand, two hundred twenty".