3870018 has 24 divisors (see below), whose sum is σ = 8696688. Its totient is φ = 1289844.

The previous prime is 3870011. The next prime is 3870037. The reversal of 3870018 is 8100783.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3869973 and 3870000.

It is not an unprimeable number, because it can be changed into a prime (3870011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3496 + ... + 4467.

It is an arithmetic number, because the mean of its divisors is an integer number (362362).

Almost surely, 2^3870018 is an apocalyptic number.

3870018 is an abundant number, since it is smaller than the sum of its proper divisors (4826670).

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

3870018 is an equidigital number, since it uses as much as digits as its factorization.

3870018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7980 (or 7968 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 3870018 is about 1967.2361322424. The cubic root of 3870018 is about 157.0016903817.

The spelling of 3870018 in words is "three million, eight hundred seventy thousand, eighteen".