1604774061 has 48 divisors (see below), whose sum is σ = 2596239360. Its totient is φ = 946784160.

The previous prime is 1604774051. The next prime is 1604774069.

1604774061 is a `hidden beast` number, since 1 + 604 + 7 + 7 + 40 + 6 + 1 = 666.

1604774061 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1604774061 - 2¹⁴ = 1604757677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604774069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2038710 + ... + 2039496.

It is an arithmetic number, because the mean of its divisors is an integer number (54088320).

Almost surely, 2^1604774061 is an apocalyptic number.

1604774061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1604774061 is a deficient number, since it is larger than the sum of its proper divisors (991465299).

1604774061 is a wasteful number, since it uses less digits than its factorization.

1604774061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326 (or 1323 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 1604774061 is about 40059.6313138301. The cubic root of 1604774061 is about 1170.7692267863.

The spelling of 1604774061 in words is "one billion, six hundred four million, seven hundred seventy-four thousand, sixty-one".