19948385 has 8 divisors (see below), whose sum is σ = 25198080. Its totient is φ = 15118704.

The previous prime is 19948367. The next prime is 19948391. The reversal of 19948385 is 58384991.

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

It is a cyclic number.

It is not a de Polignac number, because 19948385 - 2⁶ = 19948321 is a prime.

It is a Curzon 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, 104897 + ... + 105086.

It is an arithmetic number, because the mean of its divisors is an integer number (3149760).

Almost surely, 2^19948385 is an apocalyptic number.

It is an amenable number.

19948385 is a deficient number, since it is larger than the sum of its proper divisors (5249695).

19948385 is a wasteful number, since it uses less digits than its factorization.

19948385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210007.

The product of its digits is 311040, while the sum is 47.

The square root of 19948385 is about 4466.3614945501. The cubic root of 19948385 is about 271.2080527205.

It can be divided in two parts, 199 and 48385, that added together give a palindrome (48584).

The spelling of 19948385 in words is "nineteen million, nine hundred forty-eight thousand, three hundred eighty-five".