440822620 has 72 divisors (see below), whose sum is σ = 1114071840. Its totient is φ = 145918080.

The previous prime is 440822617. The next prime is 440822621. The reversal of 440822620 is 26228044.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440822621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20665 + ... + 36175.

It is an arithmetic number, because the mean of its divisors is an integer number (15473220).

Almost surely, 2^440822620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440822620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557035920).

440822620 is an abundant number, since it is smaller than the sum of its proper divisors (673249220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440822620 is a wasteful number, since it uses less digits than its factorization.

440822620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15563 (or 15554 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 440822620 is about 20995.7762419016. The cubic root of 440822620 is about 761.0641947547.

It can be divided in two parts, 4408 and 22620, that added together give a triangular number (27028 = T₂₃₂).

The spelling of 440822620 in words is "four hundred forty million, eight hundred twenty-two thousand, six hundred twenty".