40248652838 has 32 divisors (see below), whose sum is σ = 64709725824. Its totient is φ = 18708867712.

The previous prime is 40248652837. The next prime is 40248652859. The reversal of 40248652838 is 83825684204.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40248652837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1246445 + ... + 1278327.

It is an arithmetic number, because the mean of its divisors is an integer number (2022178932).

Almost surely, 2^40248652838 is an apocalyptic number.

40248652838 is a deficient number, since it is larger than the sum of its proper divisors (24461072986).

40248652838 is a wasteful number, since it uses less digits than its factorization.

40248652838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32356.

The product of its (nonzero) digits is 2949120, while the sum is 50.

The spelling of 40248652838 in words is "forty billion, two hundred forty-eight million, six hundred fifty-two thousand, eight hundred thirty-eight".