40045025040 has 40 divisors (see below), whose sum is σ = 124139578368. Its totient is φ = 10678673280.

The previous prime is 40045025017. The next prime is 40045025063. The reversal of 40045025040 is 4052054004.

It is an interprime number because it is at equal distance from previous prime (40045025017) and next prime (40045025063).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 40045025040.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 83426896 + ... + 83427375.

Almost surely, 2^40045025040 is an apocalyptic number.

40045025040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40045025040 is an abundant number, since it is smaller than the sum of its proper divisors (84094553328).

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

40045025040 is a wasteful number, since it uses less digits than its factorization.

40045025040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166854287 (or 166854281 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

Adding to 40045025040 its reverse (4052054004), we get a palindrome (44097079044).

The spelling of 40045025040 in words is "forty billion, forty-five million, twenty-five thousand, forty".