28909462 has 8 divisors (see below), whose sum is σ = 44859600. Its totient is φ = 13956264.

The previous prime is 28909451. The next prime is 28909471. The reversal of 28909462 is 26490982.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249162 + ... + 249277.

It is an arithmetic number, because the mean of its divisors is an integer number (5607450).

Almost surely, 2^28909462 is an apocalyptic number.

28909462 is a deficient number, since it is larger than the sum of its proper divisors (15950138).

28909462 is a wasteful number, since it uses less digits than its factorization.

28909462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498470.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 28909462 is about 5376.7519935366. The cubic root of 28909462 is about 306.9116234913.

The spelling of 28909462 in words is "twenty-eight million, nine hundred nine thousand, four hundred sixty-two".