3640330 has 16 divisors (see below), whose sum is σ = 6764544. Its totient is φ = 1409040.

The previous prime is 3640327. The next prime is 3640331. The reversal of 3640330 is 330463.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3640298 and 3640307.

It is not an unprimeable number, because it can be changed into a prime (3640331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5562 + ... + 6181.

It is an arithmetic number, because the mean of its divisors is an integer number (422784).

Almost surely, 2^3640330 is an apocalyptic number.

3640330 is a deficient number, since it is larger than the sum of its proper divisors (3124214).

3640330 is a wasteful number, since it uses less digits than its factorization.

3640330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11781.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 3640330 is about 1907.9648843729. The cubic root of 3640330 is about 153.8320821104.

Adding to 3640330 its reverse (330463), we get a palindrome (3970793).

The spelling of 3640330 in words is "three million, six hundred forty thousand, three hundred thirty".