19400043060 has 36 divisors (see below), whose sum is σ = 58846797828. Its totient is φ = 5173344768.

The previous prime is 19400043049. The next prime is 19400043121. The reversal of 19400043060 is 6034000491.

It can be written as a sum of positive squares in 2 ways, for example, as 6997657104 + 12402385956 = 83652^2 + 111366^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 53888829 + ... + 53889188.

It is an arithmetic number, because the mean of its divisors is an integer number (1634633273).

Almost surely, 2^19400043060 is an apocalyptic number.

19400043060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19400043060 is an abundant number, since it is smaller than the sum of its proper divisors (39446754768).

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

19400043060 is a wasteful number, since it uses less digits than its factorization.

19400043060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107778032 (or 107778027 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The spelling of 19400043060 in words is "nineteen billion, four hundred million, forty-three thousand, sixty".