770552720 has 40 divisors (see below), whose sum is σ = 2047470144. Its totient is φ = 264189312.

The previous prime is 770552701. The next prime is 770552723. The reversal of 770552720 is 27255077.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (770552723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687434 + ... + 688553.

Almost surely, 2^770552720 is an apocalyptic number.

770552720 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

770552720 is an abundant number, since it is smaller than the sum of its proper divisors (1276917424).

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

770552720 is a wasteful number, since it uses less digits than its factorization.

770552720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376007 (or 1376001 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 35.

The square root of 770552720 is about 27758.8313875062. The cubic root of 770552720 is about 916.7849021409.

The spelling of 770552720 in words is "seven hundred seventy million, five hundred fifty-two thousand, seven hundred twenty".