440620022461 has 4 divisors (see below), whose sum is σ = 440652130300. Its totient is φ = 440587914624.

The previous prime is 440620022449. The next prime is 440620022473. The reversal of 440620022461 is 164220026044.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (440620022449) and next prime (440620022473).

It can be written as a sum of positive squares in 2 ways, for example, as 137603902500 + 303016119961 = 370950^2 + 550469^2 .

It is a cyclic number.

It is not a de Polignac number, because 440620022461 - 2⁵ = 440620022429 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 (440620023461) 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, 16033326 + ... + 16060783.

It is an arithmetic number, because the mean of its divisors is an integer number (110163032575).

Almost surely, 2^440620022461 is an apocalyptic number.

It is an amenable number.

440620022461 is a deficient number, since it is larger than the sum of its proper divisors (32107839).

440620022461 is a wasteful number, since it uses less digits than its factorization.

440620022461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32107838.

The product of its (nonzero) digits is 18432, while the sum is 31.

The spelling of 440620022461 in words is "four hundred forty billion, six hundred twenty million, twenty-two thousand, four hundred sixty-one".