40618528 has 48 divisors (see below), whose sum is σ = 82736640. Its totient is φ = 19618816.

The previous prime is 40618517. The next prime is 40618541. The reversal of 40618528 is 82581604.

It is a junction number, because it is equal to n+sod(n) for n = 40618493 and 40618502.

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 7 ways as a sum of consecutive naturals, for example, 169833 + ... + 170071.

It is an arithmetic number, because the mean of its divisors is an integer number (1723680).

Almost surely, 2^40618528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40618528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41368320).

40618528 is an abundant number, since it is smaller than the sum of its proper divisors (42118112).

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

40618528 is a wasteful number, since it uses less digits than its factorization.

40618528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 40618528 is about 6373.2666663180. The cubic root of 40618528 is about 343.7489605258.

The spelling of 40618528 in words is "forty million, six hundred eighteen thousand, five hundred twenty-eight".