7874240 has 56 divisors (see below), whose sum is σ = 20464272. Its totient is φ = 2862080.

The previous prime is 7874233. The next prime is 7874261. The reversal of 7874240 is 424787.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 7874197 and 7874206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2402 + ... + 4638.

Almost surely, 2^7874240 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 7874240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10232136).

7874240 is an abundant number, since it is smaller than the sum of its proper divisors (12590032).

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

7874240 is a wasteful number, since it uses less digits than its factorization.

7874240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265 (or 2255 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 7874240 is about 2806.1076244506. The cubic root of 7874240 is about 198.9464600122.

The spelling of 7874240 in words is "seven million, eight hundred seventy-four thousand, two hundred forty".