428774241 has 32 divisors (see below), whose sum is σ = 678065920. Its totient is φ = 235892736.

The previous prime is 428774239. The next prime is 428774267. The reversal of 428774241 is 142477824.

It is a happy number.

It is not a de Polignac number, because 428774241 - 2¹ = 428774239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 428774241.

It is not an unprimeable number, because it can be changed into a prime (428774141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72525 + ... + 78213.

It is an arithmetic number, because the mean of its divisors is an integer number (21189560).

Almost surely, 2^428774241 is an apocalyptic number.

It is an amenable number.

428774241 is a deficient number, since it is larger than the sum of its proper divisors (249291679).

428774241 is a wasteful number, since it uses less digits than its factorization.

428774241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5833.

The product of its digits is 100352, while the sum is 39.

The square root of 428774241 is about 20706.8645864119. The cubic root of 428774241 is about 754.0663523049.

The spelling of 428774241 in words is "four hundred twenty-eight million, seven hundred seventy-four thousand, two hundred forty-one".