40511442 has 48 divisors (see below), whose sum is σ = 87708672. Its totient is φ = 12468480.

The previous prime is 40511431. The next prime is 40511447. The reversal of 40511442 is 24411504.

It is a happy number.

40511442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40511447) by changing a digit.

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, 105583 + ... + 105965.

It is an arithmetic number, because the mean of its divisors is an integer number (1827264).

Almost surely, 2^40511442 is an apocalyptic number.

40511442 is an abundant number, since it is smaller than the sum of its proper divisors (47197230).

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

40511442 is a wasteful number, since it uses less digits than its factorization.

40511442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 40511442 is about 6364.8599356152. The cubic root of 40511442 is about 343.4466100181.

Adding to 40511442 its reverse (24411504), we get a palindrome (64922946).

The spelling of 40511442 in words is "forty million, five hundred eleven thousand, four hundred forty-two".