770001040 has 40 divisors (see below), whose sum is σ = 1851990840. Its totient is φ = 297378816.

The previous prime is 770001019. The next prime is 770001059. The reversal of 770001040 is 40100077.

It can be written as a sum of positive squares in 4 ways, for example, as 325297296 + 444703744 = 18036^2 + 21088^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 770000999 and 770001017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163629 + ... + 168268.

It is an arithmetic number, because the mean of its divisors is an integer number (46299771).

Almost surely, 2^770001040 is an apocalyptic number.

It is an amenable number.

770001040 is an abundant number, since it is smaller than the sum of its proper divisors (1081989800).

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

770001040 is a wasteful number, since it uses less digits than its factorization.

770001040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331939 (or 331933 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 770001040 is about 27748.8925905161. The cubic root of 770001040 is about 916.5660580858.

The spelling of 770001040 in words is "seven hundred seventy million, one thousand, forty".