3640298 has 8 divisors (see below), whose sum is σ = 5468580. Its totient is φ = 1817440.

The previous prime is 3640289. The next prime is 3640309. The reversal of 3640298 is 8920463.

It can be written as a sum of positive squares in 2 ways, for example, as 3323329 + 316969 = 1823^2 + 563^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1718 + ... + 3198.

Almost surely, 2^3640298 is an apocalyptic number.

3640298 is a deficient number, since it is larger than the sum of its proper divisors (1828282).

3640298 is a wasteful number, since it uses less digits than its factorization.

3640298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 3640298 is about 1907.9564984559. The cubic root of 3640298 is about 153.8316313599.

The spelling of 3640298 in words is "three million, six hundred forty thousand, two hundred ninety-eight".