1603450432 has 56 divisors (see below), whose sum is σ = 3399475040. Its totient is φ = 748154880.

The previous prime is 1603450367. The next prime is 1603450441. The reversal of 1603450432 is 2340543061.

It is a self number, because there is not a number n which added to its sum of digits gives 1603450432.

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, 71632 + ... + 91312.

Almost surely, 2^1603450432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1603450432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1699737520).

1603450432 is an abundant number, since it is smaller than the sum of its proper divisors (1796024608).

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

1603450432 is a wasteful number, since it uses less digits than its factorization.

1603450432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19779 (or 19769 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 1603450432 is about 40043.1071721464. The cubic root of 1603450432 is about 1170.4472520004.

Adding to 1603450432 its reverse (2340543061), we get a palindrome (3943993493).

It can be divided in two parts, 16034 and 50432, that added together give a palindrome (66466).

The spelling of 1603450432 in words is "one billion, six hundred three million, four hundred fifty thousand, four hundred thirty-two".