140332406 has 8 divisors (see below), whose sum is σ = 210902664. Its totient is φ = 70031520.

The previous prime is 140332403. The next prime is 140332411. The reversal of 140332406 is 604233041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140332403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66035 + ... + 68126.

It is an arithmetic number, because the mean of its divisors is an integer number (26362833).

Almost surely, 2^140332406 is an apocalyptic number.

140332406 is a deficient number, since it is larger than the sum of its proper divisors (70570258).

140332406 is a wasteful number, since it uses less digits than its factorization.

140332406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134686.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 140332406 is about 11846.1979554623. The cubic root of 140332406 is about 519.6600416018.

Adding to 140332406 its reverse (604233041), we get a palindrome (744565447).

The spelling of 140332406 in words is "one hundred forty million, three hundred thirty-two thousand, four hundred six".