43026355640 has 32 divisors (see below), whose sum is σ = 97166554560. Its totient is φ = 17147030400.

The previous prime is 43026355637. The next prime is 43026355661. The reversal of 43026355640 is 4655362034.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 43026355594 and 43026355603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1973771 + ... + 1995450.

It is an arithmetic number, because the mean of its divisors is an integer number (3036454830).

Almost surely, 2^43026355640 is an apocalyptic number.

43026355640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43026355640 is an abundant number, since it is smaller than the sum of its proper divisors (54140198920).

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

43026355640 is a wasteful number, since it uses less digits than its factorization.

43026355640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3969503 (or 3969499 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

The spelling of 43026355640 in words is "forty-three billion, twenty-six million, three hundred fifty-five thousand, six hundred forty".