19434474 has 36 divisors (see below), whose sum is σ = 42894306. Its totient is φ = 6359184.

The previous prime is 19434469. The next prime is 19434487. The reversal of 19434474 is 47443491.

It can be written as a sum of positive squares in only one way, i.e., 12638025 + 6796449 = 3555^2 + 2607^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 112252 + ... + 112424.

Almost surely, 2^19434474 is an apocalyptic number.

19434474 is an abundant number, since it is smaller than the sum of its proper divisors (23459832).

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

19434474 is a wasteful number, since it uses less digits than its factorization.

19434474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 257 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 19434474 is about 4408.4548313440. The cubic root of 19434474 is about 268.8588047631.

The spelling of 19434474 in words is "nineteen million, four hundred thirty-four thousand, four hundred seventy-four".