140390 has 16 divisors (see below), whose sum is σ = 257040. Its totient is φ = 55200.

The previous prime is 140381. The next prime is 140401. The reversal of 140390 is 93041.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941 + ... + 1079.

It is an arithmetic number, because the mean of its divisors is an integer number (16065).

2¹⁴⁰³⁹⁰ is an apocalyptic number.

140390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140390 is a deficient number, since it is larger than the sum of its proper divisors (116650).

140390 is a wasteful number, since it uses less digits than its factorization.

140390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 140390 is about 374.6865356535. The cubic root of 140390 is about 51.9731123323.

The spelling of 140390 in words is "one hundred forty thousand, three hundred ninety".