1604761924 has 6 divisors (see below), whose sum is σ = 2808333374. Its totient is φ = 802380960.

The previous prime is 1604761909. The next prime is 1604761933. The reversal of 1604761924 is 4291674061.

It can be written as a sum of positive squares in only one way, i.e., 1499083524 + 105678400 = 38718^2 + 10280^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200595237 + ... + 200595244.

Almost surely, 2^1604761924 is an apocalyptic number.

It is an amenable number.

1604761924 is a deficient number, since it is larger than the sum of its proper divisors (1203571450).

1604761924 is a wasteful number, since it uses less digits than its factorization.

1604761924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401190485 (or 401190483 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1604761924 is about 40059.4798268774. The cubic root of 1604761924 is about 1170.7662752468.

The spelling of 1604761924 in words is "one billion, six hundred four million, seven hundred sixty-one thousand, nine hundred twenty-four".