40242728944 has 20 divisors (see below), whose sum is σ = 85058495640. Its totient is φ = 18292149440.

The previous prime is 40242728927. The next prime is 40242728963. The reversal of 40242728944 is 44982724204.

It is a junction number, because it is equal to n+sod(n) for n = 40242728894 and 40242728903.

It is a congruent number.

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, 114325759 + ... + 114326110.

It is an arithmetic number, because the mean of its divisors is an integer number (4252924782).

Almost surely, 2^40242728944 is an apocalyptic number.

40242728944 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40242728944 is an abundant number, since it is smaller than the sum of its proper divisors (44815766696).

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

40242728944 is a wasteful number, since it uses less digits than its factorization.

40242728944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228651888 (or 228651882 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 46.

The spelling of 40242728944 in words is "forty billion, two hundred forty-two million, seven hundred twenty-eight thousand, nine hundred forty-four".