408340044 has 72 divisors (see below), whose sum is σ = 1187277728. Its totient is φ = 115914240.

The previous prime is 408340007. The next prime is 408340061. The reversal of 408340044 is 440043804.

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 23 ways as a sum of consecutive naturals, for example, 34404 + ... + 44724.

Almost surely, 2^408340044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 408340044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593638864).

408340044 is an abundant number, since it is smaller than the sum of its proper divisors (778937684).

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

408340044 is a wasteful number, since it uses less digits than its factorization.

408340044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10495 (or 10490 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 408340044 is about 20207.4254668921. The cubic root of 408340044 is about 741.8919471740.

Adding to 408340044 its reverse (440043804), we get a palindrome (848383848).

The spelling of 408340044 in words is "four hundred eight million, three hundred forty thousand, forty-four".