40248724809 has 16 divisors (see below), whose sum is σ = 54837957888. Its totient is φ = 26246637312.

The previous prime is 40248724787. The next prime is 40248724819. The reversal of 40248724809 is 90842784204.

It is not a de Polignac number, because 40248724809 - 2⁸ = 40248724553 is a prime.

It is a super-2 number, since 2×40248724809² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40248724819) 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 15 ways as a sum of consecutive naturals, for example, 170239 + ... + 330875.

It is an arithmetic number, because the mean of its divisors is an integer number (3427372368).

Almost surely, 2^40248724809 is an apocalyptic number.

It is an amenable number.

40248724809 is a deficient number, since it is larger than the sum of its proper divisors (14589233079).

40248724809 is a wasteful number, since it uses less digits than its factorization.

40248724809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162464.

The product of its (nonzero) digits is 1032192, while the sum is 48.

The spelling of 40248724809 in words is "forty billion, two hundred forty-eight million, seven hundred twenty-four thousand, eight hundred nine".