140421304 has 8 divisors (see below), whose sum is σ = 263289960. Its totient is φ = 70210648.

The previous prime is 140421293. The next prime is 140421311. The reversal of 140421304 is 403124041.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8776324 + ... + 8776339.

It is an arithmetic number, because the mean of its divisors is an integer number (32911245).

Almost surely, 2^140421304 is an apocalyptic number.

It is an amenable number.

140421304 is a deficient number, since it is larger than the sum of its proper divisors (122868656).

140421304 is a wasteful number, since it uses less digits than its factorization.

140421304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17552669 (or 17552665 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 140421304 is about 11849.9495357575. The cubic root of 140421304 is about 519.7697501341.

Adding to 140421304 its reverse (403124041), we get a palindrome (543545345).

The spelling of 140421304 in words is "one hundred forty million, four hundred twenty-one thousand, three hundred four".