84528440 has 16 divisors (see below), whose sum is σ = 190189080. Its totient is φ = 33811360.

The previous prime is 84528361. The next prime is 84528469. The reversal of 84528440 is 4482548.

It is a self number, because there is not a number n which added to its sum of digits gives 84528440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056566 + ... + 1056645.

Almost surely, 2^84528440 is an apocalyptic number.

It is an amenable number.

84528440 is an abundant number, since it is smaller than the sum of its proper divisors (105660640).

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

84528440 is a wasteful number, since it uses less digits than its factorization.

84528440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113222 (or 2113218 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 35.

The square root of 84528440 is about 9193.9349573510. The cubic root of 84528440 is about 438.8683730789.

The spelling of 84528440 in words is "eighty-four million, five hundred twenty-eight thousand, four hundred forty".