408489016 has 32 divisors (see below), whose sum is σ = 860700960. Its totient is φ = 180335232.

The previous prime is 408488987. The next prime is 408489031. The reversal of 408489016 is 610984804.

It is a super-3 number, since 3×408489016³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 408489016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82995 + ... + 87778.

It is an arithmetic number, because the mean of its divisors is an integer number (26896905).

Almost surely, 2^408489016 is an apocalyptic number.

408489016 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

408489016 is an abundant number, since it is smaller than the sum of its proper divisors (452211944).

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

408489016 is a wasteful number, since it uses less digits than its factorization.

408489016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170815 (or 170811 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 408489016 is about 20211.1112015149. Note that the first 3 decimals coincide. The cubic root of 408489016 is about 741.9821560504.

The spelling of 408489016 in words is "four hundred eight million, four hundred eighty-nine thousand, sixteen".