1606378604 has 24 divisors (see below), whose sum is σ = 2983115520. Its totient is φ = 755243984.

The previous prime is 1606378591. The next prime is 1606378633. The reversal of 1606378604 is 4068736061.

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, 142544 + ... + 153399.

It is an arithmetic number, because the mean of its divisors is an integer number (124296480).

Almost surely, 2^1606378604 is an apocalyptic number.

It is an amenable number.

1606378604 is a deficient number, since it is larger than the sum of its proper divisors (1376736916).

1606378604 is a wasteful number, since it uses less digits than its factorization.

1606378604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296029 (or 296027 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 1606378604 is about 40079.6532420130. The cubic root of 1606378604 is about 1171.1592970289.

The spelling of 1606378604 in words is "one billion, six hundred six million, three hundred seventy-eight thousand, six hundred four".