28414830 has 32 divisors (see below), whose sum is σ = 69784704. Its totient is φ = 7400736.

The previous prime is 28414777. The next prime is 28414831. The reversal of 28414830 is 3841482.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28414831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9724 + ... + 12303.

It is an arithmetic number, because the mean of its divisors is an integer number (2180772).

Almost surely, 2^28414830 is an apocalyptic number.

28414830 is an abundant number, since it is smaller than the sum of its proper divisors (41369874).

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

28414830 is a wasteful number, since it uses less digits than its factorization.

28414830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22080.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 28414830 is about 5330.5562561519. The cubic root of 28414830 is about 305.1511568226.

The spelling of 28414830 in words is "twenty-eight million, four hundred fourteen thousand, eight hundred thirty".