3640948 has 24 divisors (see below), whose sum is σ = 6653192. Its totient is φ = 1741824.

The previous prime is 3640937. The next prime is 3640991. The reversal of 3640948 is 8490463.

3640948 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 944784 + 2696164 = 972^2 + 1642^2 .

It is a d-powerful number, because it can be written as 3¹³ + 6⁸ + 4⁸ + 0 + 9⁴ + 4⁹ + 8⁵ .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10636 + ... + 10972.

Almost surely, 2^3640948 is an apocalyptic number.

It is an amenable number.

3640948 is a deficient number, since it is larger than the sum of its proper divisors (3012244).

3640948 is a wasteful number, since it uses less digits than its factorization.

3640948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 3640948 is about 1908.1268301662. The cubic root of 3640948 is about 153.8407867102.

The spelling of 3640948 in words is "three million, six hundred forty thousand, nine hundred forty-eight".