408238452 has 72 divisors (see below), whose sum is σ = 1076275200. Its totient is φ = 130310208.

The previous prime is 408238421. The next prime is 408238471. The reversal of 408238452 is 254832804.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131049 + ... + 134127.

Almost surely, 2^408238452 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 408238452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538137600).

408238452 is an abundant number, since it is smaller than the sum of its proper divisors (668036748).

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

408238452 is a wasteful number, since it uses less digits than its factorization.

408238452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3245 (or 3240 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 408238452 is about 20204.9115810983. The cubic root of 408238452 is about 741.8304163174.

The spelling of 408238452 in words is "four hundred eight million, two hundred thirty-eight thousand, four hundred fifty-two".