9278238 has 32 divisors (see below), whose sum is σ = 19418112. Its totient is φ = 2952000.

The previous prime is 9278221. The next prime is 9278249. The reversal of 9278238 is 8328729.

9278238 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 9278196 and 9278205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15138 + ... + 15738.

It is an arithmetic number, because the mean of its divisors is an integer number (606816).

Almost surely, 2^9278238 is an apocalyptic number.

9278238 is an abundant number, since it is smaller than the sum of its proper divisors (10139874).

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

9278238 is a wasteful number, since it uses less digits than its factorization.

9278238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720.

The product of its digits is 48384, while the sum is 39.

The square root of 9278238 is about 3046.0200261981. The cubic root of 9278238 is about 210.1302140265.

The spelling of 9278238 in words is "nine million, two hundred seventy-eight thousand, two hundred thirty-eight".