3658225 has 24 divisors (see below), whose sum is σ = 4812192. Its totient is φ = 2755200.

The previous prime is 3658211. The next prime is 3658283. The reversal of 3658225 is 5228563.

It is a happy number.

It is not a de Polignac number, because 3658225 - 2⁷ = 3658097 is a prime.

It is a super-2 number, since 2×3658225² = 26765220301250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44034 + ... + 44116.

It is an arithmetic number, because the mean of its divisors is an integer number (200508).

Almost surely, 2^3658225 is an apocalyptic number.

It is an amenable number.

3658225 is a deficient number, since it is larger than the sum of its proper divisors (1153967).

3658225 is a wasteful number, since it uses less digits than its factorization.

3658225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 172 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 3658225 is about 1912.6486870306. The cubic root of 3658225 is about 154.0837375594.

It can be divided in two parts, 3658 and 225, that added together give a palindrome (3883).

The spelling of 3658225 in words is "three million, six hundred fifty-eight thousand, two hundred twenty-five".