1604423624 has 16 divisors (see below), whose sum is σ = 3029938800. Its totient is φ = 796439952.

The previous prime is 1604423617. The next prime is 1604423629. The reversal of 1604423624 is 4263244061.

It is not an unprimeable number, because it can be changed into a prime (1604423629) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 720302 + ... + 722525.

It is an arithmetic number, because the mean of its divisors is an integer number (189371175).

Almost surely, 2^1604423624 is an apocalyptic number.

It is an amenable number.

1604423624 is a deficient number, since it is larger than the sum of its proper divisors (1425515176).

1604423624 is a wasteful number, since it uses less digits than its factorization.

1604423624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442972 (or 1442968 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 1604423624 is about 40055.2571331155. The cubic root of 1604423624 is about 1170.6839996851.

Adding to 1604423624 its reverse (4263244061), we get a palindrome (5867667685).

The spelling of 1604423624 in words is "one billion, six hundred four million, four hundred twenty-three thousand, six hundred twenty-four".