28909482 has 32 divisors (see below), whose sum is σ = 68954112. Its totient is φ = 7900464.

The previous prime is 28909477. The next prime is 28909499. The reversal of 28909482 is 28490982.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13998 + ... + 15929.

It is an arithmetic number, because the mean of its divisors is an integer number (2154816).

Almost surely, 2^28909482 is an apocalyptic number.

28909482 is an abundant number, since it is smaller than the sum of its proper divisors (40044630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28909482 is a wasteful number, since it uses less digits than its factorization.

28909482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29962.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 28909482 is about 5376.7538533952. The cubic root of 28909482 is about 306.9116942667.

The spelling of 28909482 in words is "twenty-eight million, nine hundred nine thousand, four hundred eighty-two".