440142534451 has 8 divisors (see below), whose sum is σ = 446380242560. Its totient is φ = 433910457792.

The previous prime is 440142534437. The next prime is 440142534497. The reversal of 440142534451 is 154435241044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 440142534451 - 2²⁷ = 440008316723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 440142534451.

It is not an unprimeable number, because it can be changed into a prime (440142537451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1250316 + ... + 1563193.

It is an arithmetic number, because the mean of its divisors is an integer number (55797530320).

Almost surely, 2^440142534451 is an apocalyptic number.

440142534451 is a deficient number, since it is larger than the sum of its proper divisors (6237708109).

440142534451 is a wasteful number, since it uses less digits than its factorization.

440142534451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815725.

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 440142534451 its reverse (154435241044), we get a palindrome (594577775495).

The spelling of 440142534451 in words is "four hundred forty billion, one hundred forty-two million, five hundred thirty-four thousand, four hundred fifty-one".