1604247072 has 48 divisors (see below), whose sum is σ = 4258487520. Its totient is φ = 528737792.

The previous prime is 1604247037. The next prime is 1604247077. The reversal of 1604247072 is 2707424061.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1604247077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85338 + ... + 102425.

It is an arithmetic number, because the mean of its divisors is an integer number (88718490).

Almost surely, 2^1604247072 is an apocalyptic number.

1604247072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1604247072 is an abundant number, since it is smaller than the sum of its proper divisors (2654240448).

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

1604247072 is a wasteful number, since it uses less digits than its factorization.

1604247072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187865 (or 187857 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 1604247072 is about 40053.0532169521. The cubic root of 1604247072 is about 1170.6410571230.

The spelling of 1604247072 in words is "one billion, six hundred four million, two hundred forty-seven thousand, seventy-two".