765338406 has 16 divisors (see below), whose sum is σ = 1749345024. Its totient is φ = 218668104.

The previous prime is 765338401. The next prime is 765338473. The reversal of 765338406 is 604833567.

765338406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 18222343 = 765338406 / (7 + 6 + 5 + 3 + 3 + 8 + 4 + 0 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765338401) 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, 9111130 + ... + 9111213.

It is an arithmetic number, because the mean of its divisors is an integer number (109334064).

Almost surely, 2^765338406 is an apocalyptic number.

765338406 is an abundant number, since it is smaller than the sum of its proper divisors (984006618).

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

765338406 is a wasteful number, since it uses less digits than its factorization.

765338406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18222355.

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 765338406 is about 27664.7502428632. The cubic root of 765338406 is about 914.7122652261.

The spelling of 765338406 in words is "seven hundred sixty-five million, three hundred thirty-eight thousand, four hundred six".