428834144 has 24 divisors (see below), whose sum is σ = 867087648. Its totient is φ = 208621440.

The previous prime is 428834143. The next prime is 428834167. The reversal of 428834144 is 441438824.

It is a junction number, because it is equal to n+sod(n) for n = 428834098 and 428834107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428834143) 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, 179912 + ... + 182279.

It is an arithmetic number, because the mean of its divisors is an integer number (36128652).

Almost surely, 2^428834144 is an apocalyptic number.

It is an amenable number.

428834144 is an abundant number, since it is smaller than the sum of its proper divisors (438253504).

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

428834144 is a wasteful number, since it uses less digits than its factorization.

428834144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362238 (or 362230 counting only the distinct ones).

The product of its digits is 98304, while the sum is 38.

The square root of 428834144 is about 20708.3109885862. The cubic root of 428834144 is about 754.1014669247.

The spelling of 428834144 in words is "four hundred twenty-eight million, eight hundred thirty-four thousand, one hundred forty-four".