770471520 has 384 divisors, whose sum is σ = 3088834560. Its totient is φ = 157040640.

The previous prime is 770471509. The next prime is 770471543. The reversal of 770471520 is 25174077.

It is a happy number.

It is a super-2 number, since 2×770471520² = 1187252726262220800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1353796 + ... + 1354364.

It is an arithmetic number, because the mean of its divisors is an integer number (8043840).

Almost surely, 2^770471520 is an apocalyptic number.

770471520 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 770471520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1544417280).

770471520 is an abundant number, since it is smaller than the sum of its proper divisors (2318363040).

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

770471520 is a wasteful number, since it uses less digits than its factorization.

770471520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 770471520 is about 27757.3687513784. The cubic root of 770471520 is about 916.7526977474.

The spelling of 770471520 in words is "seven hundred seventy million, four hundred seventy-one thousand, five hundred twenty".