766407730 has 64 divisors (see below), whose sum is σ = 1560591360. Its totient is φ = 268473600.

The previous prime is 766407727. The next prime is 766407739. The reversal of 766407730 is 37704667.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (766407739) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1080616 + ... + 1081324.

It is an arithmetic number, because the mean of its divisors is an integer number (24384240).

Almost surely, 2^766407730 is an apocalyptic number.

766407730 is an abundant number, since it is smaller than the sum of its proper divisors (794183630).

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

766407730 is a wasteful number, since it uses less digits than its factorization.

766407730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075.

The product of its (nonzero) digits is 148176, while the sum is 40.

The square root of 766407730 is about 27684.0699681243. The cubic root of 766407730 is about 915.1380762494.

The spelling of 766407730 in words is "seven hundred sixty-six million, four hundred seven thousand, seven hundred thirty".