409368438 has 32 divisors (see below), whose sum is σ = 924628320. Its totient is φ = 134218080.

The previous prime is 409368431. The next prime is 409368457. The reversal of 409368438 is 834863904.

It is a junction number, because it is equal to n+sod(n) for n = 409368393 and 409368402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409368431) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 58845 + ... + 65432.

It is an arithmetic number, because the mean of its divisors is an integer number (28894635).

Almost surely, 2^409368438 is an apocalyptic number.

409368438 is an abundant number, since it is smaller than the sum of its proper divisors (515259882).

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

409368438 is a wasteful number, since it uses less digits than its factorization.

409368438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124349 (or 124343 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 409368438 is about 20232.8554089629. The cubic root of 409368438 is about 742.5142370497.

The spelling of 409368438 in words is "four hundred nine million, three hundred sixty-eight thousand, four hundred thirty-eight".