3640049 has 12 divisors (see below), whose sum is σ = 4353216. Its totient is φ = 2981352.

The previous prime is 3640037. The next prime is 3640061. The reversal of 3640049 is 9400463.

3640049 = 63² + 64² + ... + 223².

It is an interprime number because it is at equal distance from previous prime (3640037) and next prime (3640061).

It is a de Polignac number, because none of the positive numbers 2^k-3640049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3640019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3212 + ... + 4194.

It is an arithmetic number, because the mean of its divisors is an integer number (362768).

Almost surely, 2^3640049 is an apocalyptic number.

It is an amenable number.

3640049 is a deficient number, since it is larger than the sum of its proper divisors (713167).

3640049 is an equidigital number, since it uses as much as digits as its factorization.

3640049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 3640049 is about 1907.8912442799. The cubic root of 3640049 is about 153.8281238678.

The spelling of 3640049 in words is "three million, six hundred forty thousand, forty-nine".