8424138 has 32 divisors (see below), whose sum is σ = 17496000. Its totient is φ = 2702336.

The previous prime is 8424137. The next prime is 8424151. The reversal of 8424138 is 8314248.

It is a super-2 number, since 2×8424138² = 141932202086088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8424131) 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, 18538 + ... + 18986.

It is an arithmetic number, because the mean of its divisors is an integer number (546750).

Almost surely, 2^8424138 is an apocalyptic number.

8424138 is an abundant number, since it is smaller than the sum of its proper divisors (9071862).

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

8424138 is a wasteful number, since it uses less digits than its factorization.

8424138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566.

The product of its digits is 6144, while the sum is 30.

The square root of 8424138 is about 2902.4365626142. The cubic root of 8424138 is about 203.4737976555.

The spelling of 8424138 in words is "eight million, four hundred twenty-four thousand, one hundred thirty-eight".