240140020 has 24 divisors (see below), whose sum is σ = 504588168. Its totient is φ = 96000000.

The previous prime is 240140009. The next prime is 240140051. The reversal of 240140020 is 20041042.

It can be written as a sum of positive squares in 4 ways, for example, as 571536 + 239568484 = 756^2 + 15478^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58020 + ... + 62020.

It is an arithmetic number, because the mean of its divisors is an integer number (21024507).

Almost surely, 2^240140020 is an apocalyptic number.

240140020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240140020 is an abundant number, since it is smaller than the sum of its proper divisors (264448148).

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

240140020 is a wasteful number, since it uses less digits than its factorization.

240140020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7011 (or 7009 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 240140020 is about 15496.4518519563. The cubic root of 240140020 is about 621.5673317777.

Adding to 240140020 its reverse (20041042), we get a palindrome (260181062).

The spelling of 240140020 in words is "two hundred forty million, one hundred forty thousand, twenty".