28034378 has 8 divisors (see below), whose sum is σ = 43879968. Its totient is φ = 13407724.

The previous prime is 28034371. The next prime is 28034389. The reversal of 28034378 is 87343082.

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 (28034371) 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 3 ways as a sum of consecutive naturals, for example, 304676 + ... + 304767.

It is an arithmetic number, because the mean of its divisors is an integer number (5484996).

Almost surely, 2^28034378 is an apocalyptic number.

28034378 is a deficient number, since it is larger than the sum of its proper divisors (15845590).

28034378 is a wasteful number, since it uses less digits than its factorization.

28034378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609468.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 28034378 is about 5294.7500413145. The cubic root of 28034378 is about 303.7831223795.

The spelling of 28034378 in words is "twenty-eight million, thirty-four thousand, three hundred seventy-eight".