3650640 has 160 divisors (see below), whose sum is σ = 13499136. Its totient is φ = 798720.

The previous prime is 3650617. The next prime is 3650651. The reversal of 3650640 is 460563.

3650640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3650640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68854 + ... + 68906.

Almost surely, 2^3650640 is an apocalyptic number.

3650640 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 3650640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6749568).

3650640 is an abundant number, since it is smaller than the sum of its proper divisors (9848496).

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

3650640 is a wasteful number, since it uses less digits than its factorization.

3650640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 3650640 is about 1910.6648057679. The cubic root of 3650640 is about 153.9771709568.

The spelling of 3650640 in words is "three million, six hundred fifty thousand, six hundred forty".