408378204 has 72 divisors (see below), whose sum is σ = 1138864272. Its totient is φ = 122584320.

The previous prime is 408378193. The next prime is 408378209. The reversal of 408378204 is 402873804.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408378209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8547 + ... + 29829.

Almost surely, 2^408378204 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 408378204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569432136).

408378204 is an abundant number, since it is smaller than the sum of its proper divisors (730486068).

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

408378204 is a wasteful number, since it uses less digits than its factorization.

408378204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21347 (or 21342 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 408378204 is about 20208.3696522010. The cubic root of 408378204 is about 741.9150567656.

The spelling of 408378204 in words is "four hundred eight million, three hundred seventy-eight thousand, two hundred four".