920440488408 has 128 divisors (see below), whose sum is σ = 2768679014400. Its totient is φ = 249102463104.

The previous prime is 920440488353. The next prime is 920440488467. The reversal of 920440488408 is 804884044029.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24262591 + ... + 24300497.

It is an arithmetic number, because the mean of its divisors is an integer number (21630304800).

Almost surely, 2^920440488408 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 920440488408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1384339507200).

920440488408 is an abundant number, since it is smaller than the sum of its proper divisors (1848238525992).

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

920440488408 is a wasteful number, since it uses less digits than its factorization.

920440488408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45549 (or 45545 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 51.

The spelling of 920440488408 in words is "nine hundred twenty billion, four hundred forty million, four hundred eighty-eight thousand, four hundred eight".