19730470 has 8 divisors (see below), whose sum is σ = 35514864. Its totient is φ = 7892184.

The previous prime is 19730467. The next prime is 19730483. The reversal of 19730470 is 7403791.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 986514 + ... + 986533.

It is an arithmetic number, because the mean of its divisors is an integer number (4439358).

Almost surely, 2^19730470 is an apocalyptic number.

19730470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19730470 is a deficient number, since it is larger than the sum of its proper divisors (15784394).

19730470 is a wasteful number, since it uses less digits than its factorization.

19730470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973054.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 19730470 is about 4441.8993685134. The cubic root of 19730470 is about 270.2168810677.

The spelling of 19730470 in words is "nineteen million, seven hundred thirty thousand, four hundred seventy".