428632582 has 16 divisors (see below), whose sum is σ = 738012960. Its totient is φ = 182896128.

The previous prime is 428632579. The next prime is 428632583. The reversal of 428632582 is 285236824.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428632583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63643 + ... + 70054.

It is an arithmetic number, because the mean of its divisors is an integer number (46125810).

Almost surely, 2^428632582 is an apocalyptic number.

428632582 is a deficient number, since it is larger than the sum of its proper divisors (309380378).

428632582 is a wasteful number, since it uses less digits than its factorization.

428632582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133935.

The product of its digits is 184320, while the sum is 40.

The square root of 428632582 is about 20703.4437232070. The cubic root of 428632582 is about 753.9833000122.

The spelling of 428632582 in words is "four hundred twenty-eight million, six hundred thirty-two thousand, five hundred eighty-two".