1604641042 has 16 divisors (see below), whose sum is σ = 2431959552. Its totient is φ = 794031280.

The previous prime is 1604640997. The next prime is 1604641057. The reversal of 1604641042 is 2401464061.

It is a self number, because there is not a number n which added to its sum of digits gives 1604641042.

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, 64593 + ... + 85915.

It is an arithmetic number, because the mean of its divisors is an integer number (151997472).

Almost surely, 2^1604641042 is an apocalyptic number.

1604641042 is a deficient number, since it is larger than the sum of its proper divisors (827318510).

1604641042 is a wasteful number, since it uses less digits than its factorization.

1604641042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21713.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1604641042 is about 40057.9710170148. The cubic root of 1604641042 is about 1170.7368777143.

The spelling of 1604641042 in words is "one billion, six hundred four million, six hundred forty-one thousand, forty-two".