8240144 has 20 divisors (see below), whose sum is σ = 17417040. Its totient is φ = 3745440.

The previous prime is 8240143. The next prime is 8240161. The reversal of 8240144 is 4410428.

It is not an unprimeable number, because it can be changed into a prime (8240143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23234 + ... + 23585.

It is an arithmetic number, because the mean of its divisors is an integer number (870852).

Almost surely, 2^8240144 is an apocalyptic number.

It is an amenable number.

8240144 is an abundant number, since it is smaller than the sum of its proper divisors (9176896).

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

8240144 is a wasteful number, since it uses less digits than its factorization.

8240144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46838 (or 46832 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 8240144 is about 2870.5651011604. The cubic root of 8240144 is about 201.9815033876.

The spelling of 8240144 in words is "eight million, two hundred forty thousand, one hundred forty-four".