440250155139 has 16 divisors (see below), whose sum is σ = 620912673792. Its totient is φ = 276893483328.

The previous prime is 440250155129. The next prime is 440250155161. The reversal of 440250155139 is 931551052044.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-440250155139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 440250155097 and 440250155106.

It is not an unprimeable number, because it can be changed into a prime (440250155129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43696587 + ... + 43706660.

It is an arithmetic number, because the mean of its divisors is an integer number (38807042112).

Almost surely, 2^440250155139 is an apocalyptic number.

440250155139 is a deficient number, since it is larger than the sum of its proper divisors (180662518653).

440250155139 is a wasteful number, since it uses less digits than its factorization.

440250155139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87403346.

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 440250155139 in words is "four hundred forty billion, two hundred fifty million, one hundred fifty-five thousand, one hundred thirty-nine".