3845406788 has 6 divisors (see below), whose sum is σ = 6729461886. Its totient is φ = 1922703392.

The previous prime is 3845406787. The next prime is 3845406791. The reversal of 3845406788 is 8876045483.

It can be written as a sum of positive squares in only one way, i.e., 2393949184 + 1451457604 = 48928^2 + 38098^2 .

It is not an unprimeable number, because it can be changed into a prime (3845406787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480675845 + ... + 480675852.

It is an arithmetic number, because the mean of its divisors is an integer number (1121576981).

Almost surely, 2^3845406788 is an apocalyptic number.

It is an amenable number.

3845406788 is a deficient number, since it is larger than the sum of its proper divisors (2884055098).

3845406788 is a wasteful number, since it uses less digits than its factorization.

3845406788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961351701 (or 961351699 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 53.

The square root of 3845406788 is about 62011.3440267182. The cubic root of 3845406788 is about 1566.6816721866.

The spelling of 3845406788 in words is "three billion, eight hundred forty-five million, four hundred six thousand, seven hundred eighty-eight".