140365220 has 24 divisors (see below), whose sum is σ = 304932600. Its totient is φ = 54209792.

The previous prime is 140365219. The next prime is 140365229. The reversal of 140365220 is 22563041.

140365220 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 28047616 + 112317604 = 5296^2 + 10598^2 .

It is not an unprimeable number, because it can be changed into a prime (140365229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120425 + ... + 121584.

It is an arithmetic number, because the mean of its divisors is an integer number (12705525).

Almost surely, 2^140365220 is an apocalyptic number.

140365220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140365220 is an abundant number, since it is smaller than the sum of its proper divisors (164567380).

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

140365220 is a wasteful number, since it uses less digits than its factorization.

140365220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242047 (or 242045 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 140365220 is about 11847.5828758443. The cubic root of 140365220 is about 519.7005425718.

The spelling of 140365220 in words is "one hundred forty million, three hundred sixty-five thousand, two hundred twenty".