770346720 has 768 divisors, whose sum is σ = 3353011200. Its totient is φ = 162570240.

The previous prime is 770346713. The next prime is 770346737. The reversal of 770346720 is 27643077.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 17915019 + ... + 17915061.

It is an arithmetic number, because the mean of its divisors is an integer number (4365900).

Almost surely, 2^770346720 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 770346720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1676505600).

770346720 is an abundant number, since it is smaller than the sum of its proper divisors (2582664480).

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

770346720 is a wasteful number, since it uses less digits than its factorization.

770346720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 106 counting only the distinct ones).

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

The square root of 770346720 is about 27755.1206086372. The cubic root of 770346720 is about 916.7031969280.

Adding to 770346720 its reverse (27643077), we get a palindrome (797989797).

The spelling of 770346720 in words is "seven hundred seventy million, three hundred forty-six thousand, seven hundred twenty".