408538494 has 96 divisors (see below), whose sum is σ = 1146862080. Its totient is φ = 102067776.

The previous prime is 408538451. The next prime is 408538511. The reversal of 408538494 is 494835804.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24559 + ... + 37685.

It is an arithmetic number, because the mean of its divisors is an integer number (11946480).

Almost surely, 2^408538494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 408538494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573431040).

408538494 is an abundant number, since it is smaller than the sum of its proper divisors (738323586).

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

408538494 is a wasteful number, since it uses less digits than its factorization.

408538494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13174 (or 13171 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 408538494 is about 20212.3351941333. The cubic root of 408538494 is about 742.0121122300.

The spelling of 408538494 in words is "four hundred eight million, five hundred thirty-eight thousand, four hundred ninety-four".