3630018 has 24 divisors (see below), whose sum is σ = 8446032. Its totient is φ = 1037064.

The previous prime is 3629999. The next prime is 3630019. The reversal of 3630018 is 8100363.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 3629976 and 3630003.

It is not an unprimeable number, because it can be changed into a prime (3630019) 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, 5880 + ... + 6467.

It is an arithmetic number, because the mean of its divisors is an integer number (351918).

Almost surely, 2^3630018 is an apocalyptic number.

3630018 is an abundant number, since it is smaller than the sum of its proper divisors (4816014).

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

3630018 is a wasteful number, since it uses less digits than its factorization.

3630018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12366 (or 12359 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 3630018 is about 1905.2606120948. The cubic root of 3630018 is about 153.6866908363.

Multiplying 3630018 by its sum of digits (21), we get a triangular number (76230378 = T₁₂₃₄₇).

The spelling of 3630018 in words is "three million, six hundred thirty thousand, eighteen".