396225645 has 8 divisors (see below), whose sum is σ = 633961056. Its totient is φ = 211320336.

The previous prime is 396225617. The next prime is 396225659. The reversal of 396225645 is 546522693.

It is a happy number.

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

It is not a de Polignac number, because 396225645 - 2¹⁵ = 396192877 is a prime.

It is a super-3 number, since 3×396225645³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 396225597 and 396225606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13207507 + ... + 13207536.

It is an arithmetic number, because the mean of its divisors is an integer number (79245132).

Almost surely, 2^396225645 is an apocalyptic number.

It is an amenable number.

396225645 is a deficient number, since it is larger than the sum of its proper divisors (237735411).

396225645 is a wasteful number, since it uses less digits than its factorization.

396225645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26415051.

The product of its digits is 388800, while the sum is 42.

The square root of 396225645 is about 19905.4174786665. The cubic root of 396225645 is about 734.4814983500.

The spelling of 396225645 in words is "three hundred ninety-six million, two hundred twenty-five thousand, six hundred forty-five".