1604667842 has 16 divisors (see below), whose sum is σ = 2552135040. Its totient is φ = 754087488.

The previous prime is 1604667839. The next prime is 1604667907. The reversal of 1604667842 is 2487664061.

It is a junction number, because it is equal to n+sod(n) for n = 1604667793 and 1604667802.

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, 7742 + ... + 57177.

It is an arithmetic number, because the mean of its divisors is an integer number (159508440).

Almost surely, 2^1604667842 is an apocalyptic number.

1604667842 is a deficient number, since it is larger than the sum of its proper divisors (947467198).

1604667842 is a wasteful number, since it uses less digits than its factorization.

1604667842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65665.

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 1604667842 is about 40058.3055308135. The cubic root of 1604667842 is about 1170.7433953866.

The spelling of 1604667842 in words is "one billion, six hundred four million, six hundred sixty-seven thousand, eight hundred forty-two".