1603945452 has 24 divisors (see below), whose sum is σ = 3787632576. Its totient is φ = 528206608.

The previous prime is 1603945433. The next prime is 1603945463. The reversal of 1603945452 is 2545493061.

It is a self number, because there is not a number n which added to its sum of digits gives 1603945452.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804198 + ... + 806189.

It is an arithmetic number, because the mean of its divisors is an integer number (157818024).

Almost surely, 2^1603945452 is an apocalyptic number.

1603945452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1603945452 is an abundant number, since it is smaller than the sum of its proper divisors (2183687124).

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

1603945452 is a wasteful number, since it uses less digits than its factorization.

1603945452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610477 (or 1610475 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 1603945452 is about 40049.2877839294. The cubic root of 1603945452 is about 1170.5676871099.

The spelling of 1603945452 in words is "one billion, six hundred three million, nine hundred forty-five thousand, four hundred fifty-two".