28152470 has 8 divisors (see below), whose sum is σ = 50674464. Its totient is φ = 11260984.

The previous prime is 28152409. The next prime is 28152479. The reversal of 28152470 is 7425182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28152479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1407614 + ... + 1407633.

It is an arithmetic number, because the mean of its divisors is an integer number (6334308).

Almost surely, 2^28152470 is an apocalyptic number.

28152470 is a deficient number, since it is larger than the sum of its proper divisors (22521994).

28152470 is a wasteful number, since it uses less digits than its factorization.

28152470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815254.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 28152470 is about 5305.8901232498. The cubic root of 28152470 is about 304.2090767995.

The spelling of 28152470 in words is "twenty-eight million, one hundred fifty-two thousand, four hundred seventy".