3640383 has 24 divisors (see below), whose sum is σ = 5556096. Its totient is φ = 2381400.

The previous prime is 3640379. The next prime is 3640391. The reversal of 3640383 is 3830463.

It is not a de Polignac number, because 3640383 - 2² = 3640379 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

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

3640383 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17148 + ... + 17358.

It is an arithmetic number, because the mean of its divisors is an integer number (231504).

Almost surely, 2^3640383 is an apocalyptic number.

3640383 is a deficient number, since it is larger than the sum of its proper divisors (1915713).

3640383 is an equidigital number, since it uses as much as digits as its factorization.

3640383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 3640383 is about 1907.9787734668. The cubic root of 3640383 is about 153.8328286600.

The spelling of 3640383 in words is "three million, six hundred forty thousand, three hundred eighty-three".