396180489 has 4 divisors (see below), whose sum is σ = 528240656. Its totient is φ = 264120324.

The previous prime is 396180487. The next prime is 396180493. The reversal of 396180489 is 984081693.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 396180489 - 2¹ = 396180487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396180487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66030079 + ... + 66030084.

It is an arithmetic number, because the mean of its divisors is an integer number (132060164).

Almost surely, 2^396180489 is an apocalyptic number.

It is an amenable number.

396180489 is a deficient number, since it is larger than the sum of its proper divisors (132060167).

396180489 is a wasteful number, since it uses less digits than its factorization.

396180489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132060166.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 396180489 is about 19904.2831822701. The cubic root of 396180489 is about 734.4535954728.

The spelling of 396180489 in words is "three hundred ninety-six million, one hundred eighty thousand, four hundred eighty-nine".