140398 has 4 divisors (see below), whose sum is σ = 210600. Its totient is φ = 70198.

The previous prime is 140381. The next prime is 140401. The reversal of 140398 is 893041.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35098 + ... + 35101.

It is an arithmetic number, because the mean of its divisors is an integer number (52650).

2¹⁴⁰³⁹⁸ is an apocalyptic number.

140398 is a deficient number, since it is larger than the sum of its proper divisors (70202).

140398 is an equidigital number, since it uses as much as digits as its factorization.

140398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70201.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 140398 is about 374.6972110918. The cubic root of 140398 is about 51.9740995275.

The spelling of 140398 in words is "one hundred forty thousand, three hundred ninety-eight".