19486494 has 40 divisors (see below), whose sum is σ = 44858088. Its totient is φ = 6318000.

The previous prime is 19486421. The next prime is 19486513. The reversal of 19486494 is 49468491.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4369 + ... + 7619.

Almost surely, 2^19486494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19486494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22429044).

19486494 is an abundant number, since it is smaller than the sum of its proper divisors (25371594).

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

19486494 is a wasteful number, since it uses less digits than its factorization.

19486494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3302 (or 3293 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 19486494 is about 4414.3509149138. The cubic root of 19486494 is about 269.0984746542.

The spelling of 19486494 in words is "nineteen million, four hundred eighty-six thousand, four hundred ninety-four".