3843240 has 32 divisors (see below), whose sum is σ = 11530080. Its totient is φ = 1024832.

The previous prime is 3843223. The next prime is 3843247. The reversal of 3843240 is 423483.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3843240.

It is not an unprimeable number, because it can be changed into a prime (3843247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15894 + ... + 16133.

It is an arithmetic number, because the mean of its divisors is an integer number (360315).

Almost surely, 2^3843240 is an apocalyptic number.

3843240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3843240 is an abundant number, since it is smaller than the sum of its proper divisors (7686840).

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

3843240 is a wasteful number, since it uses less digits than its factorization.

3843240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32041 (or 32037 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 3843240 is about 1960.4183227056. The cubic root of 3843240 is about 156.6387355266.

The spelling of 3843240 in words is "three million, eight hundred forty-three thousand, two hundred forty".