40524012 has 72 divisors (see below), whose sum is σ = 106260336. Its totient is φ = 13014144.

The previous prime is 40523939. The next prime is 40524023. The reversal of 40524012 is 21042504.

40524012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40524012² = 3284391097152288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127678 + ... + 127994.

It is an arithmetic number, because the mean of its divisors is an integer number (1475838).

Almost surely, 2^40524012 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 40524012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53130168).

40524012 is an abundant number, since it is smaller than the sum of its proper divisors (65736324).

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

40524012 is a wasteful number, since it uses less digits than its factorization.

40524012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40524012 is about 6365.8473120237. The cubic root of 40524012 is about 343.4821281931.

Adding to 40524012 its reverse (21042504), we get a palindrome (61566516).

The spelling of 40524012 in words is "forty million, five hundred twenty-four thousand, twelve".