19276344340 has 96 divisors (see below), whose sum is σ = 45491217408. Its totient is φ = 6800256000.

The previous prime is 19276344331. The next prime is 19276344343. The reversal of 19276344340 is 4344367291.

It is a super-2 number, since 2×19276344340² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19276344343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1626717 + ... + 1638523.

It is an arithmetic number, because the mean of its divisors is an integer number (473866848).

Almost surely, 2^19276344340 is an apocalyptic number.

19276344340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19276344340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22745608704).

19276344340 is an abundant number, since it is smaller than the sum of its proper divisors (26214873068).

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

19276344340 is a wasteful number, since it uses less digits than its factorization.

19276344340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12049 (or 12047 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 19276344340 in words is "nineteen billion, two hundred seventy-six million, three hundred forty-four thousand, three hundred forty".