19930955 has 8 divisors (see below), whose sum is σ = 26091504. Its totient is φ = 14495200.

The previous prime is 19930921. The next prime is 19930991. The reversal of 19930955 is 55903991.

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

It is not a de Polignac number, because 19930955 - 2⁶ = 19930891 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181136 + ... + 181245.

It is an arithmetic number, because the mean of its divisors is an integer number (3261438).

Almost surely, 2^19930955 is an apocalyptic number.

19930955 is a deficient number, since it is larger than the sum of its proper divisors (6160549).

19930955 is a wasteful number, since it uses less digits than its factorization.

19930955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362397.

The product of its (nonzero) digits is 54675, while the sum is 41.

The square root of 19930955 is about 4464.4098154179. The cubic root of 19930955 is about 271.1290399112.

The spelling of 19930955 in words is "nineteen million, nine hundred thirty thousand, nine hundred fifty-five".