782660040 has 32 divisors (see below), whose sum is σ = 2347980480. Its totient is φ = 208709312.

The previous prime is 782659981. The next prime is 782660041. The reversal of 782660040 is 40066287.

782660040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×782660040² = 1225113476425603200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 782659983 and 782660010.

It is not an unprimeable number, because it can be changed into a prime (782660041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3260964 + ... + 3261203.

It is an arithmetic number, because the mean of its divisors is an integer number (73374390).

Almost surely, 2^782660040 is an apocalyptic number.

It is an amenable number.

782660040 is an abundant number, since it is smaller than the sum of its proper divisors (1565320440).

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

782660040 is a wasteful number, since it uses less digits than its factorization.

782660040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6522181 (or 6522177 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 782660040 is about 27976.0619101402. The cubic root of 782660040 is about 921.5616356974.

The spelling of 782660040 in words is "seven hundred eighty-two million, six hundred sixty thousand, forty".