19885494 has 16 divisors (see below), whose sum is σ = 40522032. Its totient is φ = 6503328.

The previous prime is 19885483. The next prime is 19885499. The reversal of 19885494 is 49458891.

It is a Curzon number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19885499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30949 + ... + 31584.

It is an arithmetic number, because the mean of its divisors is an integer number (2532627).

Almost surely, 2^19885494 is an apocalyptic number.

19885494 is an abundant number, since it is smaller than the sum of its proper divisors (20636538).

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

19885494 is a wasteful number, since it uses less digits than its factorization.

19885494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62591.

The product of its digits is 414720, while the sum is 48.

The square root of 19885494 is about 4459.3154183125. The cubic root of 19885494 is about 270.9227413740.

The spelling of 19885494 in words is "nineteen million, eight hundred eighty-five thousand, four hundred ninety-four".