3646560 has 96 divisors (see below), whose sum is σ = 11757312. Its totient is φ = 949760.

The previous prime is 3646553. The next prime is 3646567. The reversal of 3646560 is 656463.

It is an interprime number because it is at equal distance from previous prime (3646553) and next prime (3646567).

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3646567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34027 + ... + 34133.

It is an arithmetic number, because the mean of its divisors is an integer number (122472).

Almost surely, 2^3646560 is an apocalyptic number.

3646560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3646560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5878656).

3646560 is an abundant number, since it is smaller than the sum of its proper divisors (8110752).

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

3646560 is a wasteful number, since it uses less digits than its factorization.

3646560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 3646560 is about 1909.5968160845. The cubic root of 3646560 is about 153.9197873162.

The spelling of 3646560 in words is "three million, six hundred forty-six thousand, five hundred sixty".