28429832 has 8 divisors (see below), whose sum is σ = 53305950. Its totient is φ = 14214912.

The previous prime is 28429823. The next prime is 28429847. The reversal of 28429832 is 23892482.

It can be written as a sum of positive squares in only one way, i.e., 21215236 + 7214596 = 4606^2 + 2686^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1776857 + ... + 1776872.

Almost surely, 2^28429832 is an apocalyptic number.

It is an amenable number.

28429832 is a deficient number, since it is larger than the sum of its proper divisors (24876118).

28429832 is a wasteful number, since it uses less digits than its factorization.

28429832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553735 (or 3553731 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 28429832 is about 5331.9632406835. The cubic root of 28429832 is about 305.2048502900.

The spelling of 28429832 in words is "twenty-eight million, four hundred twenty-nine thousand, eight hundred thirty-two".