773104640 has 352 divisors, whose sum is σ = 2419455744. Its totient is φ = 230031360.

The previous prime is 773104621. The next prime is 773104643. The reversal of 773104640 is 46401377.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (352).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 773104597 and 773104606.

It is not an unprimeable number, because it can be changed into a prime (773104643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14586854 + ... + 14586906.

Almost surely, 2^773104640 is an apocalyptic number.

773104640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 773104640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1209727872).

773104640 is an abundant number, since it is smaller than the sum of its proper divisors (1646351104).

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

773104640 is a wasteful number, since it uses less digits than its factorization.

773104640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 773104640 is about 27804.7593048384. The cubic root of 773104640 is about 917.7958577336.

The spelling of 773104640 in words is "seven hundred seventy-three million, one hundred four thousand, six hundred forty".