8402238 has 32 divisors (see below), whose sum is σ = 20109600. Its totient is φ = 2585088.

The previous prime is 8402221. The next prime is 8402279. The reversal of 8402238 is 8322048.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 5283 + ... + 6686.

It is an arithmetic number, because the mean of its divisors is an integer number (628425).

Almost surely, 2^8402238 is an apocalyptic number.

8402238 is an abundant number, since it is smaller than the sum of its proper divisors (11707362).

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

8402238 is a wasteful number, since it uses less digits than its factorization.

8402238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11993 (or 11987 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 8402238 is about 2898.6614152053. The cubic root of 8402238 is about 203.2973228952.

The spelling of 8402238 in words is "eight million, four hundred two thousand, two hundred thirty-eight".