428732 has 6 divisors (see below), whose sum is σ = 750288. Its totient is φ = 214364.

The previous prime is 428731. The next prime is 428741. The reversal of 428732 is 237824.

It is a super-2 number, since 2×428732² = 367622255648, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4⁹ + 2¹⁵ + 7² + 8³ + 3⁷ + 2¹⁷ .

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 428732.

It is not an unprimeable number, because it can be changed into a prime (428731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53588 + ... + 53595.

It is an arithmetic number, because the mean of its divisors is an integer number (125048).

2⁴²⁸⁷³² is an apocalyptic number.

It is an amenable number.

428732 is a deficient number, since it is larger than the sum of its proper divisors (321556).

428732 is a wasteful number, since it uses less digits than its factorization.

428732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107187 (or 107185 counting only the distinct ones).

The product of its digits is 2688, while the sum is 26.

The square root of 428732 is about 654.7762976773. The cubic root of 428732 is about 75.4041589030.

It can be divided in two parts, 42873 and 2, that added together give a cube (42875 = 35³).

The spelling of 428732 in words is "four hundred twenty-eight thousand, seven hundred thirty-two".