40530528 has 36 divisors (see below), whose sum is σ = 115259508. Its totient is φ = 13510080.

The previous prime is 40530517. The next prime is 40530541. The reversal of 40530528 is 82503504.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70078 + ... + 70653.

It is an arithmetic number, because the mean of its divisors is an integer number (3201653).

Almost surely, 2^40530528 is an apocalyptic number.

40530528 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40530528 is an abundant number, since it is smaller than the sum of its proper divisors (74728980).

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

40530528 is a wasteful number, since it uses less digits than its factorization.

40530528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140747 (or 140736 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 40530528 is about 6366.3590850658. The cubic root of 40530528 is about 343.5005371107.

The spelling of 40530528 in words is "forty million, five hundred thirty thousand, five hundred twenty-eight".