28411760 has 80 divisors (see below), whose sum is σ = 75370176. Its totient is φ = 9867264.

The previous prime is 28411753. The next prime is 28411769. The reversal of 28411760 is 6711482.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28411769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16877 + ... + 18483.

Almost surely, 2^28411760 is an apocalyptic number.

28411760 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 28411760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37685088).

28411760 is an abundant number, since it is smaller than the sum of its proper divisors (46958416).

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

28411760 is a wasteful number, since it uses less digits than its factorization.

28411760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650 (or 1644 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 28411760 is about 5330.2682859308. The cubic root of 28411760 is about 305.1401666954.

The spelling of 28411760 in words is "twenty-eight million, four hundred eleven thousand, seven hundred sixty".