1603204880 has 80 divisors (see below), whose sum is σ = 3898036224. Its totient is φ = 612057600.

The previous prime is 1603204879. The next prime is 1603204909. The reversal of 1603204880 is 884023061.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1392305 + ... + 1393455.

Almost surely, 2^1603204880 is an apocalyptic number.

1603204880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1603204880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1949018112).

1603204880 is an abundant number, since it is smaller than the sum of its proper divisors (2294831344).

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

1603204880 is a wasteful number, since it uses less digits than its factorization.

1603204880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944 (or 1938 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 1603204880 is about 40040.0409590200. The cubic root of 1603204880 is about 1170.3875016166.

The spelling of 1603204880 in words is "one billion, six hundred three million, two hundred four thousand, eight hundred eighty".