3826840 has 32 divisors (see below), whose sum is σ = 8910000. Its totient is φ = 1477504.

The previous prime is 3826777. The next prime is 3826843. The reversal of 3826840 is 486283.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3826843) 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, 490 + ... + 2809.

Almost surely, 2^3826840 is an apocalyptic number.

It is an amenable number.

3826840 is an abundant number, since it is smaller than the sum of its proper divisors (5083160).

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

3826840 is a wasteful number, since it uses less digits than its factorization.

3826840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339 (or 3335 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 3826840 is about 1956.2310701960. The cubic root of 3826840 is about 156.4156132005.

The spelling of 3826840 in words is "three million, eight hundred twenty-six thousand, eight hundred forty".