40518552 has 64 divisors (see below), whose sum is σ = 105281280. Its totient is φ = 12984192.

The previous prime is 40518509. The next prime is 40518563. The reversal of 40518552 is 25581504.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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 15 ways as a sum of consecutive naturals, for example, 91243 + ... + 91685.

It is an arithmetic number, because the mean of its divisors is an integer number (1645020).

Almost surely, 2^40518552 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 40518552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52640640).

40518552 is an abundant number, since it is smaller than the sum of its proper divisors (64762728).

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

40518552 is a wasteful number, since it uses less digits than its factorization.

40518552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 40518552 is about 6365.4184465752. The cubic root of 40518552 is about 343.4667011531.

The spelling of 40518552 in words is "forty million, five hundred eighteen thousand, five hundred fifty-two".