40448888488 has 16 divisors (see below), whose sum is σ = 75844219860. Its totient is φ = 20223763200.

The previous prime is 40448888449. The next prime is 40448888489. The reversal of 40448888488 is 88488884404.

It can be written as a sum of positive squares in 2 ways, for example, as 40400196004 + 48692484 = 200998^2 + 6978^2 .

It is a super-2 number, since 2×40448888488² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40448888489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240598 + ... + 372538.

Almost surely, 2^40448888488 is an apocalyptic number.

It is an amenable number.

40448888488 is a deficient number, since it is larger than the sum of its proper divisors (35395331372).

40448888488 is a wasteful number, since it uses less digits than its factorization.

40448888488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170268 (or 170264 counting only the distinct ones).

The product of its (nonzero) digits is 67108864, while the sum is 64.

The spelling of 40448888488 in words is "forty billion, four hundred forty-eight million, eight hundred eighty-eight thousand, four hundred eighty-eight".