408551 has 8 divisors (see below), whose sum is σ = 480144. Its totient is φ = 342720.

The previous prime is 408539. The next prime is 408553. The reversal of 408551 is 155804.

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

It is a cyclic number.

It is not a de Polignac number, because 408551 - 2¹⁰ = 407527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1286 + ... + 1571.

It is an arithmetic number, because the mean of its divisors is an integer number (60018).

2⁴⁰⁸⁵⁵¹ is an apocalyptic number.

408551 is a deficient number, since it is larger than the sum of its proper divisors (71593).

408551 is a wasteful number, since it uses less digits than its factorization.

408551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 408551 is about 639.1799433649. The cubic root of 408551 is about 74.2019683535.

It can be divided in two parts, 4085 and 51, that multiplied together give a triangular number (208335 = T₆₄₅).

The spelling of 408551 in words is "four hundred eight thousand, five hundred fifty-one".