19764682 has 16 divisors (see below), whose sum is σ = 35356032. Its totient is φ = 8102160.

The previous prime is 19764653. The next prime is 19764721. The reversal of 19764682 is 28646791.

It is a super-2 number, since 2×19764682² = 781285309122248, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 30369 + ... + 31012.

It is an arithmetic number, because the mean of its divisors is an integer number (2209752).

Almost surely, 2^19764682 is an apocalyptic number.

19764682 is a deficient number, since it is larger than the sum of its proper divisors (15591350).

19764682 is a wasteful number, since it uses less digits than its factorization.

19764682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61413.

The product of its digits is 145152, while the sum is 43.

The square root of 19764682 is about 4445.7487558340. The cubic root of 19764682 is about 270.3729733413.

The spelling of 19764682 in words is "nineteen million, seven hundred sixty-four thousand, six hundred eighty-two".