405224016 has 20 divisors (see below), whose sum is σ = 1046828832. Its totient is φ = 135074656.

The previous prime is 405223993. The next prime is 405224041. The reversal of 405224016 is 610422504.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4221036 + ... + 4221131.

Almost surely, 2^405224016 is an apocalyptic number.

It is an amenable number.

405224016 is an abundant number, since it is smaller than the sum of its proper divisors (641604816).

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

405224016 is a wasteful number, since it uses less digits than its factorization.

405224016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8442178 (or 8442172 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 405224016 is about 20130.1767503418. The cubic root of 405224016 is about 740.0000097395. Note that the first 5 decimals are identical.

The spelling of 405224016 in words is "four hundred five million, two hundred twenty-four thousand, sixteen".