28912464 has 100 divisors (see below), whose sum is σ = 95665504. Its totient is φ = 8258112.

The previous prime is 28912463. The next prime is 28912487. The reversal of 28912464 is 46421982.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28912463) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7479 + ... + 10665.

Almost surely, 2^28912464 is an apocalyptic number.

28912464 is a gapful number since it is divisible by the number (24) 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 28912464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47832752).

28912464 is an abundant number, since it is smaller than the sum of its proper divisors (66753040).

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

28912464 is a wasteful number, since it uses less digits than its factorization.

28912464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214 (or 3199 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 28912464 is about 5377.0311511093. The cubic root of 28912464 is about 306.9222465047.

The spelling of 28912464 in words is "twenty-eight million, nine hundred twelve thousand, four hundred sixty-four".