8240004 has 36 divisors (see below), whose sum is σ = 21317296. Its totient is φ = 2682288.

The previous prime is 8239997. The next prime is 8240027. The reversal of 8240004 is 4000428.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1114 + ... + 4209.

Almost surely, 2^8240004 is an apocalyptic number.

It is an amenable number.

8240004 is an abundant number, since it is smaller than the sum of its proper divisors (13077292).

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

8240004 is a wasteful number, since it uses less digits than its factorization.

8240004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5376 (or 5371 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 8240004 is about 2870.5407156144. The cubic root of 8240004 is about 201.9803594929.

The spelling of 8240004 in words is "eight million, two hundred forty thousand, four".