28061480 has 32 divisors (see below), whose sum is σ = 66463200. Its totient is φ = 10633536.

The previous prime is 28061477. The next prime is 28061519. The reversal of 28061480 is 8416082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17702 + ... + 19221.

It is an arithmetic number, because the mean of its divisors is an integer number (2076975).

Almost surely, 2^28061480 is an apocalyptic number.

28061480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28061480 is an abundant number, since it is smaller than the sum of its proper divisors (38401720).

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

28061480 is a wasteful number, since it uses less digits than its factorization.

28061480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36953 (or 36949 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 28061480 is about 5297.3087506771. The cubic root of 28061480 is about 303.8809841132.

The spelling of 28061480 in words is "twenty-eight million, sixty-one thousand, four hundred eighty".