440050139 has 4 divisors (see below), whose sum is σ = 451943424. Its totient is φ = 428156856.

The previous prime is 440050133. The next prime is 440050183. The reversal of 440050139 is 931050044.

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

It is a cyclic number.

It is not a de Polignac number, because 440050139 - 2¹⁶ = 439984603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440050133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5946587 + ... + 5946660.

It is an arithmetic number, because the mean of its divisors is an integer number (112985856).

Almost surely, 2^440050139 is an apocalyptic number.

440050139 is a deficient number, since it is larger than the sum of its proper divisors (11893285).

440050139 is a wasteful number, since it uses less digits than its factorization.

440050139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11893284.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 440050139 is about 20977.3720708768. The cubic root of 440050139 is about 760.6193813934.

The spelling of 440050139 in words is "four hundred forty million, fifty thousand, one hundred thirty-nine".