19854485 has 16 divisors (see below), whose sum is σ = 27323136. Its totient is φ = 13567488.

The previous prime is 19854481. The next prime is 19854547. The reversal of 19854485 is 58445891.

It is a cyclic number.

It is not a de Polignac number, because 19854485 - 2² = 19854481 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19854481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11552 + ... + 13158.

It is an arithmetic number, because the mean of its divisors is an integer number (1707696).

Almost surely, 2^19854485 is an apocalyptic number.

It is an amenable number.

19854485 is a deficient number, since it is larger than the sum of its proper divisors (7468651).

19854485 is a wasteful number, since it uses less digits than its factorization.

19854485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972.

The product of its digits is 230400, while the sum is 44.

The square root of 19854485 is about 4455.8371828423. The cubic root of 19854485 is about 270.7818444657.

The spelling of 19854485 in words is "nineteen million, eight hundred fifty-four thousand, four hundred eighty-five".