3781340 has 12 divisors (see below), whose sum is σ = 7940856. Its totient is φ = 1512528.

The previous prime is 3781313. The next prime is 3781367. The reversal of 3781340 is 431873.

It is an interprime number because it is at equal distance from previous prime (3781313) and next prime (3781367).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94514 + ... + 94553.

It is an arithmetic number, because the mean of its divisors is an integer number (661738).

Almost surely, 2^3781340 is an apocalyptic number.

It is an amenable number.

3781340 is an abundant number, since it is smaller than the sum of its proper divisors (4159516).

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

3781340 is a wasteful number, since it uses less digits than its factorization.

3781340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189076 (or 189074 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 3781340 is about 1944.5667898018. The cubic root of 3781340 is about 155.7932281351.

The spelling of 3781340 in words is "three million, seven hundred eighty-one thousand, three hundred forty".