203419428 has 24 divisors (see below), whose sum is σ = 476200032. Its totient is φ = 67584384.

The previous prime is 203419421. The next prime is 203419439. The reversal of 203419428 is 824914302.

It is not an unprimeable number, because it can be changed into a prime (203419421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23925 + ... + 31292.

It is an arithmetic number, because the mean of its divisors is an integer number (19841668).

Almost surely, 2^203419428 is an apocalyptic number.

It is an amenable number.

203419428 is an abundant number, since it is smaller than the sum of its proper divisors (272780604).

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

203419428 is a wasteful number, since it uses less digits than its factorization.

203419428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55531 (or 55529 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 203419428 is about 14262.5182909611. The cubic root of 203419428 is about 588.1175548203.

The spelling of 203419428 in words is "two hundred three million, four hundred nineteen thousand, four hundred twenty-eight".