3640366 has 8 divisors (see below), whose sum is σ = 5489424. Its totient is φ = 1810560.

The previous prime is 3640333. The next prime is 3640369. The reversal of 3640366 is 6630463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3640366² = 26504529227912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640369) 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, 4330 + ... + 5101.

It is an arithmetic number, because the mean of its divisors is an integer number (686178).

Almost surely, 2^3640366 is an apocalyptic number.

3640366 is a deficient number, since it is larger than the sum of its proper divisors (1849058).

3640366 is a wasteful number, since it uses less digits than its factorization.

3640366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9626.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 3640366 is about 1907.9743184854. The cubic root of 3640366 is about 153.8325892015.

The spelling of 3640366 in words is "three million, six hundred forty thousand, three hundred sixty-six".