40144512 has 32 divisors (see below), whose sum is σ = 106634880. Its totient is φ = 13381376.

The previous prime is 40144501. The next prime is 40144529. The reversal of 40144512 is 21544104.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×40144512² = 3223163687436288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51888 + ... + 52655.

It is an arithmetic number, because the mean of its divisors is an integer number (3332340).

Almost surely, 2^40144512 is an apocalyptic number.

It is an amenable number.

40144512 is an abundant number, since it is smaller than the sum of its proper divisors (66490368).

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

40144512 is a wasteful number, since it uses less digits than its factorization.

40144512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104560 (or 104548 counting only the distinct ones).

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

The square root of 40144512 is about 6335.9696968972. The cubic root of 40144512 is about 342.4065477538.

Adding to 40144512 its reverse (21544104), we get a palindrome (61688616).

The spelling of 40144512 in words is "forty million, one hundred forty-four thousand, five hundred twelve".