773521920 has 480 divisors, whose sum is σ = 2993379840. Its totient is φ = 189112320.

The previous prime is 773521871. The next prime is 773521961. The reversal of 773521920 is 29125377.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24952305 + ... + 24952335.

It is an arithmetic number, because the mean of its divisors is an integer number (6236208).

Almost surely, 2^773521920 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 773521920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1496689920).

773521920 is an abundant number, since it is smaller than the sum of its proper divisors (2219857920).

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

773521920 is a wasteful number, since it uses less digits than its factorization.

773521920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 773521920 is about 27812.2620439259. The cubic root of 773521920 is about 917.9609535274.

The spelling of 773521920 in words is "seven hundred seventy-three million, five hundred twenty-one thousand, nine hundred twenty".