28534464 has 168 divisors, whose sum is σ = 97871280. Its totient is φ = 8128512.

The previous prime is 28534423. The next prime is 28534501. The reversal of 28534464 is 46443582.

It is a tau number, because it is divible by the number of its divisors (168).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84504 + ... + 84840.

Almost surely, 2^28534464 is an apocalyptic number.

28534464 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 28534464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48935640).

28534464 is an abundant number, since it is smaller than the sum of its proper divisors (69336816).

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

28534464 is a wasteful number, since it uses less digits than its factorization.

28534464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 349 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 28534464 is about 5341.7660001164. The cubic root of 28534464 is about 305.5788130739.

The spelling of 28534464 in words is "twenty-eight million, five hundred thirty-four thousand, four hundred sixty-four".