3640950 has 120 divisors (see below), whose sum is σ = 10802880. Its totient is φ = 907200.

The previous prime is 3640937. The next prime is 3640991. The reversal of 3640950 is 590463.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 117435 + ... + 117465.

It is an arithmetic number, because the mean of its divisors is an integer number (90024).

Almost surely, 2^3640950 is an apocalyptic number.

3640950 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 3640950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5401440).

3640950 is an abundant number, since it is smaller than the sum of its proper divisors (7161930).

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

3640950 is a wasteful number, since it uses less digits than its factorization.

3640950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 3640950 is about 1908.1273542403. The cubic root of 3640950 is about 153.8408148788.

The spelling of 3640950 in words is "three million, six hundred forty thousand, nine hundred fifty".