28349070 has 16 divisors (see below), whose sum is σ = 68037840. Its totient is φ = 7559744.

The previous prime is 28349063. The next prime is 28349089. The reversal of 28349070 is 7094382.

It is a Curzon number.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 472455 + ... + 472514.

It is an arithmetic number, because the mean of its divisors is an integer number (4252365).

Almost surely, 2^28349070 is an apocalyptic number.

28349070 is an abundant number, since it is smaller than the sum of its proper divisors (39688770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28349070 is a wasteful number, since it uses less digits than its factorization.

28349070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944979.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 28349070 is about 5324.3844714671. The cubic root of 28349070 is about 304.9155727977.

The spelling of 28349070 in words is "twenty-eight million, three hundred forty-nine thousand, seventy".