28052470 has 8 divisors (see below), whose sum is σ = 50494464. Its totient is φ = 11220984.

The previous prime is 28052449. The next prime is 28052477. The reversal of 28052470 is 7425082.

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 (28052477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1402614 + ... + 1402633.

It is an arithmetic number, because the mean of its divisors is an integer number (6311808).

Almost surely, 2^28052470 is an apocalyptic number.

28052470 is a deficient number, since it is larger than the sum of its proper divisors (22441994).

28052470 is a wasteful number, since it uses less digits than its factorization.

28052470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805254.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 28052470 is about 5296.4582505671. The cubic root of 28052470 is about 303.8484571907.

The spelling of 28052470 in words is "twenty-eight million, fifty-two thousand, four hundred seventy".