3807240 has 32 divisors (see below), whose sum is σ = 11422080. Its totient is φ = 1015232.

The previous prime is 3807229. The next prime is 3807257. The reversal of 3807240 is 427083.

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 3807240.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15744 + ... + 15983.

It is an arithmetic number, because the mean of its divisors is an integer number (356940).

Almost surely, 2^3807240 is an apocalyptic number.

3807240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3807240 is an abundant number, since it is smaller than the sum of its proper divisors (7614840).

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

3807240 is a wasteful number, since it uses less digits than its factorization.

3807240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31741 (or 31737 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 3807240 is about 1951.2150060924. The cubic root of 3807240 is about 156.1481170482.

The spelling of 3807240 in words is "three million, eight hundred seven thousand, two hundred forty".