28960620 has 96 divisors (see below), whose sum is σ = 88397568. Its totient is φ = 7041792.

The previous prime is 28960619. The next prime is 28960643. The reversal of 28960620 is 2606982.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83287 + ... + 83633.

It is an arithmetic number, because the mean of its divisors is an integer number (920808).

Almost surely, 2^28960620 is an apocalyptic number.

28960620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28960620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44198784).

28960620 is an abundant number, since it is smaller than the sum of its proper divisors (59436948).

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

28960620 is a wasteful number, since it uses less digits than its factorization.

28960620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 28960620 is about 5381.5072238175. The cubic root of 28960620 is about 307.0925530946.

The spelling of 28960620 in words is "twenty-eight million, nine hundred sixty thousand, six hundred twenty".