28461576 has 64 divisors (see below), whose sum is σ = 83603520. Its totient is φ = 7960320.

The previous prime is 28461569. The next prime is 28461611. The reversal of 28461576 is 67516482.

It is a super-2 number, since 2×28461576² = 1620122616807552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 715 + ... + 7578.

It is an arithmetic number, because the mean of its divisors is an integer number (1306305).

Almost surely, 2^28461576 is an apocalyptic number.

28461576 is a gapful number since it is divisible by the number (26) 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 28461576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41801760).

28461576 is an abundant number, since it is smaller than the sum of its proper divisors (55141944).

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

28461576 is a wasteful number, since it uses less digits than its factorization.

28461576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8326 (or 8322 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 28461576 is about 5334.9391749110. The cubic root of 28461576 is about 305.3184025972.

The spelling of 28461576 in words is "twenty-eight million, four hundred sixty-one thousand, five hundred seventy-six".