405241224 has 16 divisors (see below), whose sum is σ = 1013103120. Its totient is φ = 135080400.

The previous prime is 405241219. The next prime is 405241229. The reversal of 405241224 is 422142504.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (405241219) and next prime (405241229).

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 16885051 = 405241224 / (4 + 0 + 5 + 2 + 4 + 1 + 2 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 405241194 and 405241203.

It is not an unprimeable number, because it can be changed into a prime (405241229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8442502 + ... + 8442549.

It is an arithmetic number, because the mean of its divisors is an integer number (63318945).

Almost surely, 2^405241224 is an apocalyptic number.

It is an amenable number.

405241224 is an abundant number, since it is smaller than the sum of its proper divisors (607861896).

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

405241224 is a wasteful number, since it uses less digits than its factorization.

405241224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16885060 (or 16885056 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 405241224 is about 20130.6041638099. The cubic root of 405241224 is about 740.0104843900.

Adding to 405241224 its reverse (422142504), we get a palindrome (827383728).

The spelling of 405241224 in words is "four hundred five million, two hundred forty-one thousand, two hundred twenty-four".