19342018340 has 48 divisors (see below), whose sum is σ = 41585721408. Its totient is φ = 7552723584.

The previous prime is 19342018313. The next prime is 19342018369. The reversal of 19342018340 is 4381024391.

It is a super-2 number, since 2×19342018340² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 19342018340.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1898099 + ... + 1908261.

It is an arithmetic number, because the mean of its divisors is an integer number (866369196).

Almost surely, 2^19342018340 is an apocalyptic number.

19342018340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19342018340 is an abundant number, since it is smaller than the sum of its proper divisors (22243703068).

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

19342018340 is a wasteful number, since it uses less digits than its factorization.

19342018340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12428 (or 12426 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 19342018340 in words is "nineteen billion, three hundred forty-two million, eighteen thousand, three hundred forty".