3650660 has 48 divisors (see below), whose sum is σ = 8702400. Its totient is φ = 1275264.

The previous prime is 3650651. The next prime is 3650663. The reversal of 3650660 is 660563.

3650660 = T₁₆₉ + T₁₇₀ + ... + T₂₉₈.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (3650663) 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, 4571 + ... + 5309.

It is an arithmetic number, because the mean of its divisors is an integer number (181300).

Almost surely, 2^3650660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3650660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4351200).

3650660 is an abundant number, since it is smaller than the sum of its proper divisors (5051740).

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

3650660 is a wasteful number, since it uses less digits than its factorization.

3650660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 3650660 is about 1910.6700395411. The cubic root of 3650660 is about 153.9774521438.

The spelling of 3650660 in words is "three million, six hundred fifty thousand, six hundred sixty".