19424474 has 16 divisors (see below), whose sum is σ = 29897640. Its totient is φ = 9461760.

The previous prime is 19424453. The next prime is 19424477. The reversal of 19424474 is 47442491.

It can be written as a sum of positive squares in 4 ways, for example, as 874225 + 18550249 = 935^2 + 4307^2 .

It is not an unprimeable number, because it can be changed into a prime (19424477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13082 + ... + 14490.

Almost surely, 2^19424474 is an apocalyptic number.

19424474 is a deficient number, since it is larger than the sum of its proper divisors (10473166).

19424474 is a wasteful number, since it uses less digits than its factorization.

19424474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585.

The product of its digits is 32256, while the sum is 35.

The square root of 19424474 is about 4407.3205011662. The cubic root of 19424474 is about 268.8126831252.

The spelling of 19424474 in words is "nineteen million, four hundred twenty-four thousand, four hundred seventy-four".