203428480 has 32 divisors (see below), whose sum is σ = 486322740. Its totient is φ = 81371136.

The previous prime is 203428453. The next prime is 203428481. The reversal of 203428480 is 84824302.

It can be written as a sum of positive squares in 2 ways, for example, as 193543744 + 9884736 = 13912^2 + 3144^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×203428480² = 82766292950220800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203428481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158289 + ... + 159568.

Almost surely, 2^203428480 is an apocalyptic number.

203428480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203428480 is an abundant number, since it is smaller than the sum of its proper divisors (282894260).

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

203428480 is an equidigital number, since it uses as much as digits as its factorization.

203428480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317876 (or 317864 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 203428480 is about 14262.8356226944. The cubic root of 203428480 is about 588.1262782761.

The spelling of 203428480 in words is "two hundred three million, four hundred twenty-eight thousand, four hundred eighty".