140440389958 has 16 divisors (see below), whose sum is σ = 229817860416. Its totient is φ = 63834787240.

The previous prime is 140440389937. The next prime is 140440389977. The reversal of 140440389958 is 859983044041.

It is a junction number, because it is equal to n+sod(n) for n = 140440389899 and 140440389908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072485 + ... + 1196287.

It is an arithmetic number, because the mean of its divisors is an integer number (14363616276).

Almost surely, 2^140440389958 is an apocalyptic number.

140440389958 is a deficient number, since it is larger than the sum of its proper divisors (89377470458).

140440389958 is a wasteful number, since it uses less digits than its factorization.

140440389958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175379.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 140440389958 in words is "one hundred forty billion, four hundred forty million, three hundred eighty-nine thousand, nine hundred fifty-eight".