140240220 has 48 divisors (see below), whose sum is σ = 399120288. Its totient is φ = 36783360.

The previous prime is 140240161. The next prime is 140240267. The reversal of 140240220 is 22042041.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 140240220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15499 + ... + 22818.

It is an arithmetic number, because the mean of its divisors is an integer number (8315006).

Almost surely, 2^140240220 is an apocalyptic number.

140240220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140240220 is an abundant number, since it is smaller than the sum of its proper divisors (258880068).

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

140240220 is a wasteful number, since it uses less digits than its factorization.

140240220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38390 (or 38388 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 140240220 is about 11842.3063632048. The cubic root of 140240220 is about 519.5462264215.

Adding to 140240220 its reverse (22042041), we get a palindrome (162282261).

The spelling of 140240220 in words is "one hundred forty million, two hundred forty thousand, two hundred twenty".