140431466 has 16 divisors (see below), whose sum is σ = 241418880. Its totient is φ = 60015120.

The previous prime is 140431453. The next prime is 140431481. The reversal of 140431466 is 664134041.

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 in 7 ways as a sum of consecutive naturals, for example, 8945 + ... + 18996.

It is an arithmetic number, because the mean of its divisors is an integer number (15088680).

Almost surely, 2^140431466 is an apocalyptic number.

140431466 is a deficient number, since it is larger than the sum of its proper divisors (100987414).

140431466 is a wasteful number, since it uses less digits than its factorization.

140431466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28309.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 140431466 is about 11850.3783061977. The cubic root of 140431466 is about 519.7822880531.

The spelling of 140431466 in words is "one hundred forty million, four hundred thirty-one thousand, four hundred sixty-six".