203479428 has 48 divisors (see below), whose sum is σ = 504463680. Its totient is φ = 63713664.

The previous prime is 203479427. The next prime is 203479429. The reversal of 203479428 is 824974302.

It is an interprime number because it is at equal distance from previous prime (203479427) and next prime (203479429).

It is not an unprimeable number, because it can be changed into a prime (203479421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4975 + ... + 20777.

It is an arithmetic number, because the mean of its divisors is an integer number (10509660).

Almost surely, 2^203479428 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 203479428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252231840).

203479428 is an abundant number, since it is smaller than the sum of its proper divisors (300984252).

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

203479428 is a wasteful number, since it uses less digits than its factorization.

203479428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15876 (or 15874 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 203479428 is about 14264.6215512365. The cubic root of 203479428 is about 588.1753722812.

The spelling of 203479428 in words is "two hundred three million, four hundred seventy-nine thousand, four hundred twenty-eight".