28970466 has 40 divisors (see below), whose sum is σ = 67627344. Its totient is φ = 8273160.

The previous prime is 28970453. The next prime is 28970467. The reversal of 28970466 is 66407982.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (28970467) 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 19 ways as a sum of consecutive naturals, for example, 13401 + ... + 15411.

Almost surely, 2^28970466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28970466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33813672).

28970466 is an abundant number, since it is smaller than the sum of its proper divisors (38656878).

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

28970466 is an equidigital number, since it uses as much as digits as its factorization.

28970466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044 (or 2023 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 28970466 is about 5382.4219455557. The cubic root of 28970466 is about 307.1273508152.

The spelling of 28970466 in words is "twenty-eight million, nine hundred seventy thousand, four hundred sixty-six".