28415484 has 36 divisors (see below), whose sum is σ = 72010120. Its totient is φ = 9447840.

The previous prime is 28415479. The next prime is 28415489. The reversal of 28415484 is 48451482.

It is an interprime number because it is at equal distance from previous prime (28415479) and next prime (28415489).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28415489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18747 + ... + 20205.

Almost surely, 2^28415484 is an apocalyptic number.

It is an amenable number.

28415484 is an abundant number, since it is smaller than the sum of its proper divisors (43594636).

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

28415484 is a wasteful number, since it uses less digits than its factorization.

28415484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010 (or 2005 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 28415484 is about 5330.6176002411. The cubic root of 28415484 is about 305.1534979396.

The spelling of 28415484 in words is "twenty-eight million, four hundred fifteen thousand, four hundred eighty-four".