405241228 has 24 divisors (see below), whose sum is σ = 813139712. Its totient is φ = 173105424.

The previous prime is 405241219. The next prime is 405241229. The reversal of 405241228 is 822142504.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 405241196 and 405241205.

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 7 ways as a sum of consecutive naturals, for example, 14976 + ... + 32167.

Almost surely, 2^405241228 is an apocalyptic number.

It is an amenable number.

405241228 is an abundant number, since it is smaller than the sum of its proper divisors (407898484).

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

405241228 is a wasteful number, since it uses less digits than its factorization.

405241228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47461 (or 47459 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 405241228 is about 20130.6042631611. The cubic root of 405241228 is about 740.0104868248.

The spelling of 405241228 in words is "four hundred five million, two hundred forty-one thousand, two hundred twenty-eight".