3640452 has 12 divisors (see below), whose sum is σ = 8494416. Its totient is φ = 1213480.

The previous prime is 3640451. The next prime is 3640471. The reversal of 3640452 is 2540463.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3640451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151674 + ... + 151697.

It is an arithmetic number, because the mean of its divisors is an integer number (707868).

Almost surely, 2^3640452 is an apocalyptic number.

It is an amenable number.

3640452 is an abundant number, since it is smaller than the sum of its proper divisors (4853964).

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

3640452 is a wasteful number, since it uses less digits than its factorization.

3640452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303378 (or 303376 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 3640452 is about 1907.9968553433. The cubic root of 3640452 is about 153.8338005722.

The spelling of 3640452 in words is "three million, six hundred forty thousand, four hundred fifty-two".