3818140 has 36 divisors (see below), whose sum is σ = 8340696. Its totient is φ = 1468096.

The previous prime is 3818137. The next prime is 3818179. The reversal of 3818140 is 418183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16707 + ... + 16933.

It is an arithmetic number, because the mean of its divisors is an integer number (231686).

Almost surely, 2^3818140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3818140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4170348).

3818140 is an abundant number, since it is smaller than the sum of its proper divisors (4522556).

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

3818140 is a wasteful number, since it uses less digits than its factorization.

3818140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 3818140 is about 1954.0061412391. The cubic root of 3818140 is about 156.2969906666.

The spelling of 3818140 in words is "three million, eight hundred eighteen thousand, one hundred forty".