19434680 has 32 divisors (see below), whose sum is σ = 43858800. Its totient is φ = 7750656.

The previous prime is 19434677. The next prime is 19434691. The reversal of 19434680 is 8643491.

It is a self number, because there is not a number n which added to its sum of digits gives 19434680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20456 + ... + 21384.

Almost surely, 2^19434680 is an apocalyptic number.

19434680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19434680 is an abundant number, since it is smaller than the sum of its proper divisors (24424120).

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

19434680 is a wasteful number, since it uses less digits than its factorization.

19434680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463 (or 1459 counting only the distinct ones).

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

The square root of 19434680 is about 4408.4781954774. The cubic root of 19434680 is about 268.8597547025.

The spelling of 19434680 in words is "nineteen million, four hundred thirty-four thousand, six hundred eighty".