440020124254061 has 4 divisors (see below), whose sum is σ = 473867826119772. Its totient is φ = 406172422388352.

The previous prime is 440020124254031. The next prime is 440020124254069. The reversal of 440020124254061 is 160452421020044.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 169281697288900 + 270738426965161 = 13010830^2 + 16454131^2 .

It is a cyclic number.

It is not a de Polignac number, because 440020124254061 - 2¹⁴ = 440020124237677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440020124254069) 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, 16923850932836 + ... + 16923850932861.

It is an arithmetic number, because the mean of its divisors is an integer number (118466956529943).

Almost surely, 2^{440020124254061} is an apocalyptic number.

It is an amenable number.

440020124254061 is a deficient number, since it is larger than the sum of its proper divisors (33847701865711).

440020124254061 is a wasteful number, since it uses less digits than its factorization.

440020124254061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33847701865710.

The product of its (nonzero) digits is 61440, while the sum is 35.

The spelling of 440020124254061 in words is "four hundred forty trillion, twenty billion, one hundred twenty-four million, two hundred fifty-four thousand, sixty-one".