28126020 has 96 divisors (see below), whose sum is σ = 85857408. Its totient is φ = 6838272.

The previous prime is 28126013. The next prime is 28126037. The reversal of 28126020 is 2062182.

It is a congruent number.

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, 83292 + ... + 83628.

It is an arithmetic number, because the mean of its divisors is an integer number (894348).

Almost surely, 2^28126020 is an apocalyptic number.

28126020 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 28126020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42928704).

28126020 is an abundant number, since it is smaller than the sum of its proper divisors (57731388).

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

28126020 is a wasteful number, since it uses less digits than its factorization.

28126020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 28126020 is about 5303.3970245495. The cubic root of 28126020 is about 304.1137760874.

The spelling of 28126020 in words is "twenty-eight million, one hundred twenty-six thousand, twenty".