28040467 has 8 divisors (see below), whose sum is σ = 34511456. Its totient is φ = 22185792.

The previous prime is 28040449. The next prime is 28040479. The reversal of 28040467 is 76404082.

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

It is a cyclic number.

It is not a de Polignac number, because 28040467 - 2¹⁵ = 28007699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28040407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153978 + ... + 154159.

It is an arithmetic number, because the mean of its divisors is an integer number (4313932).

Almost surely, 2^28040467 is an apocalyptic number.

28040467 is a deficient number, since it is larger than the sum of its proper divisors (6470989).

28040467 is a wasteful number, since it uses less digits than its factorization.

28040467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308157.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 28040467 is about 5295.3250136323. The cubic root of 28040467 is about 303.8051144437.

The spelling of 28040467 in words is "twenty-eight million, forty thousand, four hundred sixty-seven".