3213630 has 48 divisors (see below), whose sum is σ = 9550944. Its totient is φ = 734400.

The previous prime is 3213619. The next prime is 3213659. The reversal of 3213630 is 363123.

It is a happy number.

3213630 is a `hidden beast` number, since 32 + 1 + 3 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1921 + ... + 3180.

It is an arithmetic number, because the mean of its divisors is an integer number (198978).

Almost surely, 2^3213630 is an apocalyptic number.

3213630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3213630 is an abundant number, since it is smaller than the sum of its proper divisors (6337314).

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

3213630 is a wasteful number, since it uses less digits than its factorization.

3213630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121 (or 5118 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 3213630 is about 1792.6600346970. The cubic root of 3213630 is about 147.5701858833.

Adding to 3213630 its reverse (363123), we get a palindrome (3576753).

The spelling of 3213630 in words is "three million, two hundred thirteen thousand, six hundred thirty".