3817940 has 24 divisors (see below), whose sum is σ = 9163392. Its totient is φ = 1308960.

The previous prime is 3817939. The next prime is 3817963. The reversal of 3817940 is 497183.

It is a junction number, because it is equal to n+sod(n) for n = 3817897 and 3817906.

It is a congruent number.

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, 13496 + ... + 13775.

It is an arithmetic number, because the mean of its divisors is an integer number (381808).

Almost surely, 2^3817940 is an apocalyptic number.

It is an amenable number.

3817940 is an abundant number, since it is smaller than the sum of its proper divisors (5345452).

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

3817940 is a wasteful number, since it uses less digits than its factorization.

3817940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27287 (or 27285 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 3817940 is about 1953.9549636570. The cubic root of 3817940 is about 156.2942615940.

The spelling of 3817940 in words is "three million, eight hundred seventeen thousand, nine hundred forty".