19953948 has 24 divisors (see below), whose sum is σ = 53210752. Its totient is φ = 5701104.

The previous prime is 19953919. The next prime is 19953953. The reversal of 19953948 is 84935991.

It is a junction number, because it is equal to n+sod(n) for n = 19953897 and 19953906.

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 7 ways as a sum of consecutive naturals, for example, 118690 + ... + 118857.

Almost surely, 2^19953948 is an apocalyptic number.

It is an amenable number.

19953948 is an abundant number, since it is smaller than the sum of its proper divisors (33256804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19953948 is a wasteful number, since it uses less digits than its factorization.

19953948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237561 (or 237559 counting only the distinct ones).

The product of its digits is 349920, while the sum is 48.

The square root of 19953948 is about 4466.9842175678. The cubic root of 19953948 is about 271.2332609461.

The spelling of 19953948 in words is "nineteen million, nine hundred fifty-three thousand, nine hundred forty-eight".