19869948 has 60 divisors (see below), whose sum is σ = 59371312. Its totient is φ = 5676480.

The previous prime is 19869947. The next prime is 19869973. The reversal of 19869948 is 84996891.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 19869894 and 19869903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19869947) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2113 + ... + 6648.

Almost surely, 2^19869948 is an apocalyptic number.

19869948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19869948 is an abundant number, since it is smaller than the sum of its proper divisors (39501364).

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

19869948 is a wasteful number, since it uses less digits than its factorization.

19869948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8784 (or 8773 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 54.

The square root of 19869948 is about 4457.5719848366. The cubic root of 19869948 is about 270.8521226780.

The spelling of 19869948 in words is "nineteen million, eight hundred sixty-nine thousand, nine hundred forty-eight".