19346103440 has 20 divisors (see below), whose sum is σ = 44979690684. Its totient is φ = 7738441344.

The previous prime is 19346103437. The next prime is 19346103463. The reversal of 19346103440 is 4430164391.

It can be written as a sum of positive squares in 2 ways, for example, as 5990140816 + 13355962624 = 77396^2 + 115568^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×19346103440² (a number of 21 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 19346103440.

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, 120913067 + ... + 120913226.

Almost surely, 2^19346103440 is an apocalyptic number.

19346103440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19346103440 is an abundant number, since it is smaller than the sum of its proper divisors (25633587244).

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

19346103440 is a wasteful number, since it uses less digits than its factorization.

19346103440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241826306 (or 241826300 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 19346103440 in words is "nineteen billion, three hundred forty-six million, one hundred three thousand, four hundred forty".