28458470 has 16 divisors (see below), whose sum is σ = 51535008. Its totient is φ = 11314560.

The previous prime is 28458461. The next prime is 28458481. The reversal of 28458470 is 7485482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6851 + ... + 10190.

It is an arithmetic number, because the mean of its divisors is an integer number (3220938).

Almost surely, 2^28458470 is an apocalyptic number.

28458470 is a deficient number, since it is larger than the sum of its proper divisors (23076538).

28458470 is a wasteful number, since it uses less digits than its factorization.

28458470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17215.

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 28458470 is about 5334.6480671175. The cubic root of 28458470 is about 305.3072957696.

The spelling of 28458470 in words is "twenty-eight million, four hundred fifty-eight thousand, four hundred seventy".