28380254 has 8 divisors (see below), whose sum is σ = 48651888. Its totient is φ = 12162960.

The previous prime is 28380251. The next prime is 28380263. The reversal of 28380254 is 45208382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28380254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28380251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013567 + ... + 1013594.

It is an arithmetic number, because the mean of its divisors is an integer number (6081486).

Almost surely, 2^28380254 is an apocalyptic number.

28380254 is a deficient number, since it is larger than the sum of its proper divisors (20271634).

28380254 is a wasteful number, since it uses less digits than its factorization.

28380254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027170.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 28380254 is about 5327.3120802146. The cubic root of 28380254 is about 305.0273342876.

The spelling of 28380254 in words is "twenty-eight million, three hundred eighty thousand, two hundred fifty-four".