3646530 has 48 divisors (see below), whose sum is σ = 9794304. Its totient is φ = 940320.

The previous prime is 3646523. The next prime is 3646541. The reversal of 3646530 is 356463.

3646530 is a `hidden beast` number, since 3 + 6 + 4 + 653 + 0 = 666.

3646530 is nontrivially palindromic in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 3646494 and 3646503.

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, 2137 + ... + 3443.

It is an arithmetic number, because the mean of its divisors is an integer number (204048).

Almost surely, 2^3646530 is an apocalyptic number.

3646530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3646530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4897152).

3646530 is an abundant number, since it is smaller than the sum of its proper divisors (6147774).

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

3646530 is a wasteful number, since it uses less digits than its factorization.

3646530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351 (or 1348 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 3646530 is about 1909.5889610071. The cubic root of 3646530 is about 153.9193652192.

The spelling of 3646530 in words is "three million, six hundred forty-six thousand, five hundred thirty".