239404228 has 24 divisors (see below), whose sum is σ = 480200000. Its totient is φ = 102303648.

The previous prime is 239404219. The next prime is 239404273. The reversal of 239404228 is 822404932.

It is a junction number, because it is equal to n+sod(n) for n = 239404193 and 239404202.

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, 2478 + ... + 22021.

Almost surely, 2^239404228 is an apocalyptic number.

239404228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

239404228 is an abundant number, since it is smaller than the sum of its proper divisors (240795772).

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

239404228 is a wasteful number, since it uses less digits than its factorization.

239404228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24859 (or 24857 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 239404228 is about 15472.6929782763. The cubic root of 239404228 is about 620.9318522912.

The spelling of 239404228 in words is "two hundred thirty-nine million, four hundred four thousand, two hundred twenty-eight".