19649234 has 8 divisors (see below), whose sum is σ = 32153328. Its totient is φ = 8931460.

The previous prime is 19649233. The next prime is 19649251. The reversal of 19649234 is 43294691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (19649233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446552 + ... + 446595.

It is an arithmetic number, because the mean of its divisors is an integer number (4019166).

Almost surely, 2^19649234 is an apocalyptic number.

19649234 is a deficient number, since it is larger than the sum of its proper divisors (12504094).

19649234 is a wasteful number, since it uses less digits than its factorization.

19649234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893160.

The product of its digits is 46656, while the sum is 38.

The square root of 19649234 is about 4432.7456502714. The cubic root of 19649234 is about 269.8455174813.

The spelling of 19649234 in words is "nineteen million, six hundred forty-nine thousand, two hundred thirty-four".