8739240 has 64 divisors (see below), whose sum is σ = 27604800. Its totient is φ = 2207232.

The previous prime is 8739209. The next prime is 8739281. The reversal of 8739240 is 429378.

It is a super-4 number, since 4×8739240⁴ (a number of 29 digits) contains 4444 as substring.

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, 364 + ... + 4196.

It is an arithmetic number, because the mean of its divisors is an integer number (431325).

Almost surely, 2^8739240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8739240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13802400).

8739240 is an abundant number, since it is smaller than the sum of its proper divisors (18865560).

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

8739240 is a wasteful number, since it uses less digits than its factorization.

8739240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3866 (or 3862 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 8739240 is about 2956.2205601071. The cubic root of 8739240 is about 205.9797636200.

The spelling of 8739240 in words is "eight million, seven hundred thirty-nine thousand, two hundred forty".