19850764 has 12 divisors (see below), whose sum is σ = 36782424. Its totient is φ = 9341504.

The previous prime is 19850749. The next prime is 19850767. The reversal of 19850764 is 46705891.

It is not an unprimeable number, because it can be changed into a prime (19850767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145894 + ... + 146029.

It is an arithmetic number, because the mean of its divisors is an integer number (3065202).

Almost surely, 2^19850764 is an apocalyptic number.

It is an amenable number.

19850764 is a deficient number, since it is larger than the sum of its proper divisors (16931660).

19850764 is a wasteful number, since it uses less digits than its factorization.

19850764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291944 (or 291942 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 19850764 is about 4455.4196210907. The cubic root of 19850764 is about 270.7649273444.

The spelling of 19850764 in words is "nineteen million, eight hundred fifty thousand, seven hundred sixty-four".