408143436 has 24 divisors (see below), whose sum is σ = 967948464. Its totient is φ = 133817280.

The previous prime is 408143423. The next prime is 408143471. The reversal of 408143436 is 634341804.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 408143397 and 408143406.

It is an unprimeable number.

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, 278055 + ... + 279518.

It is an arithmetic number, because the mean of its divisors is an integer number (40331186).

Almost surely, 2^408143436 is an apocalyptic number.

It is an amenable number.

408143436 is an abundant number, since it is smaller than the sum of its proper divisors (559805028).

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

408143436 is a wasteful number, since it uses less digits than its factorization.

408143436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557641 (or 557639 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 408143436 is about 20202.5601347948. The cubic root of 408143436 is about 741.7728590837.

The spelling of 408143436 in words is "four hundred eight million, one hundred forty-three thousand, four hundred thirty-six".