1604775942 has 128 divisors (see below), whose sum is σ = 4488929280. Its totient is φ = 412814880.

The previous prime is 1604775889. The next prime is 1604775959. The reversal of 1604775942 is 2495774061.

1604775942 is a `hidden beast` number, since 16 + 0 + 47 + 7 + 594 + 2 = 666.

1604775942 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 443103 + ... + 446709.

It is an arithmetic number, because the mean of its divisors is an integer number (35069760).

Almost surely, 2^1604775942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1604775942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2244464640).

1604775942 is an abundant number, since it is smaller than the sum of its proper divisors (2884153338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1604775942 is a wasteful number, since it uses less digits than its factorization.

1604775942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743 (or 3737 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 1604775942 is about 40059.6547913234. The cubic root of 1604775942 is about 1170.7696842164.

The spelling of 1604775942 in words is "one billion, six hundred four million, seven hundred seventy-five thousand, nine hundred forty-two".