140441894 has 4 divisors (see below), whose sum is σ = 210662844. Its totient is φ = 70220946.

The previous prime is 140441869. The next prime is 140441909. The reversal of 140441894 is 498144041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 498144041 = 2467 ⋅201923.

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, 35110472 + ... + 35110475.

It is an arithmetic number, because the mean of its divisors is an integer number (52665711).

Almost surely, 2^140441894 is an apocalyptic number.

140441894 is a deficient number, since it is larger than the sum of its proper divisors (70220950).

140441894 is an equidigital number, since it uses as much as digits as its factorization.

140441894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70220949.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 140441894 is about 11850.8182839836. The cubic root of 140441894 is about 519.7951535352.

The spelling of 140441894 in words is "one hundred forty million, four hundred forty-one thousand, eight hundred ninety-four".