28570466 has 8 divisors (see below), whose sum is σ = 42904620. Its totient is φ = 14268928.

The previous prime is 28570459. The next prime is 28570469. The reversal of 28570466 is 66407582.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28462225 + 108241 = 5335^2 + 329^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28570469) 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, 5831 + ... + 9546.

Almost surely, 2^28570466 is an apocalyptic number.

28570466 is a deficient number, since it is larger than the sum of its proper divisors (14334154).

28570466 is a wasteful number, since it uses less digits than its factorization.

28570466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16308.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 28570466 is about 5345.1347971777. The cubic root of 28570466 is about 305.7072755631.

The spelling of 28570466 in words is "twenty-eight million, five hundred seventy thousand, four hundred sixty-six".