140344302 has 16 divisors (see below), whose sum is σ = 320787072. Its totient is φ = 40098360.

The previous prime is 140344301. The next prime is 140344327. The reversal of 140344302 is 203443041.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140344301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1670724 + ... + 1670807.

It is an arithmetic number, because the mean of its divisors is an integer number (20049192).

Almost surely, 2^140344302 is an apocalyptic number.

140344302 is an abundant number, since it is smaller than the sum of its proper divisors (180442770).

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

140344302 is a wasteful number, since it uses less digits than its factorization.

140344302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341543.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 140344302 is about 11846.7000468485. The cubic root of 140344302 is about 519.6747250746.

Adding to 140344302 its reverse (203443041), we get a palindrome (343787343).

It can be divided in two parts, 14034 and 4302, that added together give a triangular number (18336 = T₁₉₁).

The spelling of 140344302 in words is "one hundred forty million, three hundred forty-four thousand, three hundred two".