396550 has 48 divisors (see below), whose sum is σ = 928512. Its totient is φ = 122400.

The previous prime is 396547. The next prime is 396563. The reversal of 396550 is 55693.

It is a happy number.

396550 is nontrivially palindromic in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3799 + ... + 3901.

It is an arithmetic number, because the mean of its divisors is an integer number (19344).

2³⁹⁶⁵⁵⁰ is an apocalyptic number.

396550 is an abundant number, since it is smaller than the sum of its proper divisors (531962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396550 is a wasteful number, since it uses less digits than its factorization.

396550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 396550 is about 629.7221609567. The cubic root of 396550 is about 73.4681862101.

It can be divided in two parts, 396 and 550, that added together give a triangular number (946 = T₄₃).

The spelling of 396550 in words is "three hundred ninety-six thousand, five hundred fifty".