40045512 has 32 divisors (see below), whose sum is σ = 107815680. Its totient is φ = 12321600.

The previous prime is 40045501. The next prime is 40045517. The reversal of 40045512 is 21554004.

It is not an unprimeable number, because it can be changed into a prime (40045517) by changing a digit.

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, 63864 + ... + 64487.

It is an arithmetic number, because the mean of its divisors is an integer number (3369240).

Almost surely, 2^40045512 is an apocalyptic number.

It is an amenable number.

40045512 is an abundant number, since it is smaller than the sum of its proper divisors (67770168).

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

40045512 is a wasteful number, since it uses less digits than its factorization.

40045512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128373 (or 128369 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 40045512 is about 6328.1523369780. The cubic root of 40045512 is about 342.1248475482.

Adding to 40045512 its reverse (21554004), we get a palindrome (61599516).

The spelling of 40045512 in words is "forty million, forty-five thousand, five hundred twelve".