28434424 has 16 divisors (see below), whose sum is σ = 53398800. Its totient is φ = 14194752.

The previous prime is 28434407. The next prime is 28434433. The reversal of 28434424 is 42443482.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3372 + ... + 8260.

It is an arithmetic number, because the mean of its divisors is an integer number (3337425).

Almost surely, 2^28434424 is an apocalyptic number.

It is an amenable number.

28434424 is a deficient number, since it is larger than the sum of its proper divisors (24964376).

28434424 is a wasteful number, since it uses less digits than its factorization.

28434424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5622 (or 5618 counting only the distinct ones).

The product of its digits is 24576, while the sum is 31.

The square root of 28434424 is about 5332.3938339174. The cubic root of 28434424 is about 305.2212816829.

The spelling of 28434424 in words is "twenty-eight million, four hundred thirty-four thousand, four hundred twenty-four".