28455150 has 24 divisors (see below), whose sum is σ = 70569144. Its totient is φ = 7588000.

The previous prime is 28455137. The next prime is 28455157. The reversal of 28455150 is 5155482.

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 (28455157) 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 11 ways as a sum of consecutive naturals, for example, 94701 + ... + 95000.

It is an arithmetic number, because the mean of its divisors is an integer number (2940381).

Almost surely, 2^28455150 is an apocalyptic number.

28455150 is an abundant number, since it is smaller than the sum of its proper divisors (42113994).

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

28455150 is a wasteful number, since it uses less digits than its factorization.

28455150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189716 (or 189711 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 28455150 is about 5334.3368847496. The cubic root of 28455150 is about 305.2954228001.

The spelling of 28455150 in words is "twenty-eight million, four hundred fifty-five thousand, one hundred fifty".