3658990 has 16 divisors (see below), whose sum is σ = 6610752. Its totient is φ = 1458144.

The previous prime is 3658981. The next prime is 3659009. The reversal of 3658990 is 998563.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3172 + ... + 4168.

It is an arithmetic number, because the mean of its divisors is an integer number (413172).

Almost surely, 2^3658990 is an apocalyptic number.

3658990 is a deficient number, since it is larger than the sum of its proper divisors (2951762).

3658990 is a wasteful number, since it uses less digits than its factorization.

3658990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 3658990 is about 1912.8486610289. The cubic root of 3658990 is about 154.0944773621.

The spelling of 3658990 in words is "three million, six hundred fifty-eight thousand, nine hundred ninety".