770331744 has 648 divisors, whose sum is σ = 3075476040. Its totient is φ = 181149696.

The previous prime is 770331743. The next prime is 770331769. The reversal of 770331744 is 447133077.

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

It is a junction number, because it is equal to n+sod(n) for n = 770331699 and 770331708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770331743) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 40543767 + ... + 40543785.

It is an arithmetic number, because the mean of its divisors is an integer number (4746105).

Almost surely, 2^770331744 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 770331744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1537738020).

770331744 is an abundant number, since it is smaller than the sum of its proper divisors (2305144296).

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

770331744 is a wasteful number, since it uses less digits than its factorization.

770331744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 770331744 is about 27754.8508192712. The cubic root of 770331744 is about 916.6972564705.

The spelling of 770331744 in words is "seven hundred seventy million, three hundred thirty-one thousand, seven hundred forty-four".