3640576 has 18 divisors (see below), whose sum is σ = 7267442. Its totient is φ = 1820160.

The previous prime is 3640561. The next prime is 3640577. The reversal of 3640576 is 6750463.

It can be written as a sum of positive squares in only one way, i.e., 3326976 + 313600 = 1824^2 + 560^2 .

It is a super-2 number, since 2×3640576² = 26507587223552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6855 + ... + 7366.

Almost surely, 2^3640576 is an apocalyptic number.

It is an amenable number.

3640576 is a deficient number, since it is larger than the sum of its proper divisors (3626866).

3640576 is an equidigital number, since it uses as much as digits as its factorization.

3640576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14237 (or 14223 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 3640576 is about 1908.0293498791. The cubic root of 3640576 is about 153.8355471662.

It can be divided in two parts, 36405 and 76, that added together give a square (36481 = 191²).

The spelling of 3640576 in words is "three million, six hundred forty thousand, five hundred seventy-six".