140440302 has 12 divisors (see below), whose sum is σ = 304287360. Its totient is φ = 46813428.

The previous prime is 140440297. The next prime is 140440331. The reversal of 140440302 is 203044041.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7802239 = 140440302 / (1 + 4 + 0 + 4 + 4 + 0 + 3 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3901102 + ... + 3901137.

It is an arithmetic number, because the mean of its divisors is an integer number (25357280).

Almost surely, 2^140440302 is an apocalyptic number.

140440302 is an abundant number, since it is smaller than the sum of its proper divisors (163847058).

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

140440302 is a wasteful number, since it uses less digits than its factorization.

140440302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7802247 (or 7802244 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 140440302 is about 11850.7511154357. The cubic root of 140440302 is about 519.7931894560.

Adding to 140440302 its reverse (203044041), we get a palindrome (343484343).

The spelling of 140440302 in words is "one hundred forty million, four hundred forty thousand, three hundred two".