3845489378 has 16 divisors (see below), whose sum is σ = 5970889080. Its totient is φ = 1855276416.

The previous prime is 3845489357. The next prime is 3845489387. The reversal of 3845489378 is 8739845483.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2933630569 + 911858809 = 54163^2 + 30197^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76100 + ... + 116112.

Almost surely, 2^3845489378 is an apocalyptic number.

3845489378 is a deficient number, since it is larger than the sum of its proper divisors (2125399702).

3845489378 is a wasteful number, since it uses less digits than its factorization.

3845489378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41701.

The product of its digits is 23224320, while the sum is 59.

The square root of 3845489378 is about 62012.0099496864. The cubic root of 3845489378 is about 1566.6928882790.

The spelling of 3845489378 in words is "three billion, eight hundred forty-five million, four hundred eighty-nine thousand, three hundred seventy-eight".