424015228 has 48 divisors (see below), whose sum is σ = 931940800. Its totient is φ = 167735232.

The previous prime is 424015219. The next prime is 424015237. The reversal of 424015228 is 822510424.

It is an interprime number because it is at equal distance from previous prime (424015219) and next prime (424015237).

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 = 424015196 and 424015205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5950 + ... + 29722.

Almost surely, 2^424015228 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 424015228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465970400).

424015228 is an abundant number, since it is smaller than the sum of its proper divisors (507925572).

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

424015228 is a wasteful number, since it uses less digits than its factorization.

424015228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23811 (or 23795 counting only the distinct ones).

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

The square root of 424015228 is about 20591.6300471818. The cubic root of 424015228 is about 751.2661445604.

The spelling of 424015228 in words is "four hundred twenty-four million, fifteen thousand, two hundred twenty-eight".