3201616 has 20 divisors (see below), whose sum is σ = 6767424. Its totient is φ = 1455200.

The previous prime is 3201589. The next prime is 3201617. The reversal of 3201616 is 6161023.

It is a super-2 number, since 2×3201616² = 20500690022912, which contains 22 as substring.

3201616 is a modest number, since divided by 1616 gives 320 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 3201593 and 3201602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8920 + ... + 9271.

Almost surely, 2^3201616 is an apocalyptic number.

It is an amenable number.

3201616 is an abundant number, since it is smaller than the sum of its proper divisors (3565808).

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

3201616 is a wasteful number, since it uses less digits than its factorization.

3201616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18210 (or 18204 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 3201616 is about 1789.3060107204. The cubic root of 3201616 is about 147.3860615832.

Adding to 3201616 its reverse (6161023), we get a palindrome (9362639).

It can be divided in two parts, 320 and 1616, that added together give a square (1936 = 44²).

The spelling of 3201616 in words is "three million, two hundred one thousand, six hundred sixteen".