3782440 has 16 divisors (see below), whose sum is σ = 8510580. Its totient is φ = 1512960.

The previous prime is 3782437. The next prime is 3782447. The reversal of 3782440 is 442873.

3782440 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3617604 + 164836 = 1902^2 + 406^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3782399 and 3782408.

It is not an unprimeable number, because it can be changed into a prime (3782447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47241 + ... + 47320.

Almost surely, 2^3782440 is an apocalyptic number.

It is an amenable number.

3782440 is an abundant number, since it is smaller than the sum of its proper divisors (4728140).

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

3782440 is a wasteful number, since it uses less digits than its factorization.

3782440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94572 (or 94568 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 3782440 is about 1944.8496085816. The cubic root of 3782440 is about 155.8083335330.

The spelling of 3782440 in words is "three million, seven hundred eighty-two thousand, four hundred forty".