3686430 has 32 divisors (see below), whose sum is σ = 9652608. Its totient is φ = 893600.

The previous prime is 3686411. The next prime is 3686447. The reversal of 3686430 is 346863.

It is a super-2 number, since 2×3686430² = 27179532289800, which contains 22 as substring.

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

It is a Curzon number.

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, 5256 + ... + 5915.

It is an arithmetic number, because the mean of its divisors is an integer number (301644).

Almost surely, 2^3686430 is an apocalyptic number.

3686430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3686430 is an abundant number, since it is smaller than the sum of its proper divisors (5966178).

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

3686430 is a wasteful number, since it uses less digits than its factorization.

3686430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11192.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 3686430 is about 1920.0078124841. The cubic root of 3686430 is about 154.4787205850.

Subtracting from 3686430 its sum of digits (30), we obtain a square (3686400 = 1920²).

The spelling of 3686430 in words is "three million, six hundred eighty-six thousand, four hundred thirty".