140302240 has 48 divisors (see below), whose sum is σ = 356966568. Its totient is φ = 51803136.

The previous prime is 140302229. The next prime is 140302243. The reversal of 140302240 is 42203041.

It can be written as a sum of positive squares in 4 ways, for example, as 48832144 + 91470096 = 6988^2 + 9564^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (140302243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31647 + ... + 35806.

Almost surely, 2^140302240 is an apocalyptic number.

140302240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140302240 is an abundant number, since it is smaller than the sum of its proper divisors (216664328).

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

140302240 is a wasteful number, since it uses less digits than its factorization.

140302240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67481 (or 67473 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 140302240 is about 11844.9246515121. The cubic root of 140302240 is about 519.6228033791.

Adding to 140302240 its reverse (42203041), we get a palindrome (182505281).

The spelling of 140302240 in words is "one hundred forty million, three hundred two thousand, two hundred forty".