19692648 has 48 divisors (see below), whose sum is σ = 53539200. Its totient is φ = 6539040.

The previous prime is 19692643. The next prime is 19692661. The reversal of 19692648 is 84629691.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (19692641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34203 + ... + 34773.

It is an arithmetic number, because the mean of its divisors is an integer number (1115400).

Almost surely, 2^19692648 is an apocalyptic number.

19692648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19692648 is an abundant number, since it is smaller than the sum of its proper divisors (33846552).

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

19692648 is a wasteful number, since it uses less digits than its factorization.

19692648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062 (or 1055 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 19692648 is about 4437.6399132872. The cubic root of 19692648 is about 270.0441080203.

The spelling of 19692648 in words is "nineteen million, six hundred ninety-two thousand, six hundred forty-eight".