28302254 has 4 divisors (see below), whose sum is σ = 42453384. Its totient is φ = 14151126.

The previous prime is 28302251. The next prime is 28302257. The reversal of 28302254 is 45220382.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (28302251) and next prime (28302257).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28302251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7075562 + ... + 7075565.

It is an arithmetic number, because the mean of its divisors is an integer number (10613346).

Almost surely, 2^28302254 is an apocalyptic number.

28302254 is a deficient number, since it is larger than the sum of its proper divisors (14151130).

28302254 is a wasteful number, since it uses less digits than its factorization.

28302254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14151129.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 28302254 is about 5319.9862781778. The cubic root of 28302254 is about 304.7476332192.

The spelling of 28302254 in words is "twenty-eight million, three hundred two thousand, two hundred fifty-four".