140420302 has 32 divisors (see below), whose sum is σ = 236597760. Its totient is φ = 61956480.

The previous prime is 140420299. The next prime is 140420311. The reversal of 140420302 is 203024041.

140420302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×140420302² = 39435722427542408, which contains 22 as substring.

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, 143238 + ... + 144214.

It is an arithmetic number, because the mean of its divisors is an integer number (7393680).

Almost surely, 2^140420302 is an apocalyptic number.

140420302 is a deficient number, since it is larger than the sum of its proper divisors (96177458).

140420302 is a wasteful number, since it uses less digits than its factorization.

140420302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176.

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

The square root of 140420302 is about 11849.9072570210. The cubic root of 140420302 is about 519.7685138295.

Adding to 140420302 its reverse (203024041), we get a palindrome (343444343).

The spelling of 140420302 in words is "one hundred forty million, four hundred twenty thousand, three hundred two".