19930670 has 8 divisors (see below), whose sum is σ = 35875224. Its totient is φ = 7972264.

The previous prime is 19930667. The next prime is 19930697. The reversal of 19930670 is 7603991.

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

It is a self number, because there is not a number n which added to its sum of digits gives 19930670.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 996524 + ... + 996543.

It is an arithmetic number, because the mean of its divisors is an integer number (4484403).

Almost surely, 2^19930670 is an apocalyptic number.

19930670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19930670 is a deficient number, since it is larger than the sum of its proper divisors (15944554).

19930670 is a wasteful number, since it uses less digits than its factorization.

19930670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993074.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 19930670 is about 4464.3778961911. The cubic root of 19930670 is about 271.1277475806.

The spelling of 19930670 in words is "nineteen million, nine hundred thirty thousand, six hundred seventy".