428941 has 4 divisors (see below), whose sum is σ = 440572. Its totient is φ = 417312.

The previous prime is 428899. The next prime is 428951. The reversal of 428941 is 149824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 396900 + 32041 = 630^2 + 179^2 .

It is a cyclic number.

It is not a de Polignac number, because 428941 - 2⁹ = 428429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428951) 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, 5760 + ... + 5833.

It is an arithmetic number, because the mean of its divisors is an integer number (110143).

2⁴²⁸⁹⁴¹ is an apocalyptic number.

It is an amenable number.

428941 is a deficient number, since it is larger than the sum of its proper divisors (11631).

428941 is a wasteful number, since it uses less digits than its factorization.

428941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11630.

The product of its digits is 2304, while the sum is 28.

The square root of 428941 is about 654.9358747236. The cubic root of 428941 is about 75.4164096868.

It can be divided in two parts, 428 and 941, that added together give a square (1369 = 37²).

The spelling of 428941 in words is "four hundred twenty-eight thousand, nine hundred forty-one".