140246540 has 48 divisors (see below), whose sum is σ = 342316800. Its totient is φ = 47266752.

The previous prime is 140246531. The next prime is 140246569. The reversal of 140246540 is 45642041.

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, 230 + ... + 16749.

It is an arithmetic number, because the mean of its divisors is an integer number (7131600).

Almost surely, 2^140246540 is an apocalyptic number.

140246540 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 140246540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171158400).

140246540 is an abundant number, since it is smaller than the sum of its proper divisors (202070260).

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

140246540 is a wasteful number, since it uses less digits than its factorization.

140246540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17054 (or 17052 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 140246540 is about 11842.5732001115. The cubic root of 140246540 is about 519.5540308465.

Adding to 140246540 its reverse (45642041), we get a palindrome (185888581).

The spelling of 140246540 in words is "one hundred forty million, two hundred forty-six thousand, five hundred forty".