40088888444 has 12 divisors (see below), whose sum is σ = 76533332568. Its totient is φ = 18222222000.

The previous prime is 40088888407. The next prime is 40088888471. The reversal of 40088888444 is 44488888004.

It is a super-2 number, since 2×40088888444² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40088888444.

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, 455555507 + ... + 455555594.

It is an arithmetic number, because the mean of its divisors is an integer number (6377777714).

Almost surely, 2^40088888444 is an apocalyptic number.

40088888444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40088888444 is a deficient number, since it is larger than the sum of its proper divisors (36444444124).

40088888444 is a wasteful number, since it uses less digits than its factorization.

40088888444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911111116 (or 911111114 counting only the distinct ones).

The product of its (nonzero) digits is 8388608, while the sum is 56.

The spelling of 40088888444 in words is "forty billion, eighty-eight million, eight hundred eighty-eight thousand, four hundred forty-four".