19434056 has 8 divisors (see below), whose sum is σ = 36438870. Its totient is φ = 9717024.

The previous prime is 19434053. The next prime is 19434071. The reversal of 19434056 is 65043491.

It can be written as a sum of positive squares in only one way, i.e., 19061956 + 372100 = 4366^2 + 610^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×19434056² = 755365065222272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19434053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1214621 + ... + 1214636.

Almost surely, 2^19434056 is an apocalyptic number.

It is an amenable number.

19434056 is a deficient number, since it is larger than the sum of its proper divisors (17004814).

19434056 is a wasteful number, since it uses less digits than its factorization.

19434056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429263 (or 2429259 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 19434056 is about 4408.4074221877. The cubic root of 19434056 is about 268.8568771955.

The spelling of 19434056 in words is "nineteen million, four hundred thirty-four thousand, fifty-six".