405553224 has 64 divisors (see below), whose sum is σ = 1096416000. Its totient is φ = 124519424.

The previous prime is 405553223. The next prime is 405553237. The reversal of 405553224 is 422355504.

It is a junction number, because it is equal to n+sod(n) for n = 405553191 and 405553200.

It is not an unprimeable number, because it can be changed into a prime (405553223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8602 + ... + 29750.

It is an arithmetic number, because the mean of its divisors is an integer number (17131500).

Almost surely, 2^405553224 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 405553224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548208000).

405553224 is an abundant number, since it is smaller than the sum of its proper divisors (690862776).

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

405553224 is a wasteful number, since it uses less digits than its factorization.

405553224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21222 (or 21218 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 405553224 is about 20138.3520676345. The cubic root of 405553224 is about 740.2003499397.

The spelling of 405553224 in words is "four hundred five million, five hundred fifty-three thousand, two hundred twenty-four".