3806940 has 48 divisors (see below), whose sum is σ = 10829952. Its totient is φ = 998976.

The previous prime is 3806927. The next prime is 3806981. The reversal of 3806940 is 496083.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 3806898 and 3806907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3547 + ... + 4493.

It is an arithmetic number, because the mean of its divisors is an integer number (225624).

Almost surely, 2^3806940 is an apocalyptic number.

3806940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3806940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5414976).

3806940 is an abundant number, since it is smaller than the sum of its proper divisors (7023012).

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

3806940 is a wasteful number, since it uses less digits than its factorization.

3806940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 3806940 is about 1951.1381294004. The cubic root of 3806940 is about 156.1440155937.

The spelling of 3806940 in words is "three million, eight hundred six thousand, nine hundred forty".