19854404 has 12 divisors (see below), whose sum is σ = 34779024. Its totient is φ = 9917544.

The previous prime is 19854397. The next prime is 19854407. The reversal of 19854404 is 40445891.

It is a happy number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (19854407) 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, 4259 + ... + 7605.

It is an arithmetic number, because the mean of its divisors is an integer number (2898252).

Almost surely, 2^19854404 is an apocalyptic number.

It is an amenable number.

19854404 is a deficient number, since it is larger than the sum of its proper divisors (14924620).

19854404 is a wasteful number, since it uses less digits than its factorization.

19854404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4834 (or 4832 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 19854404 is about 4455.8280936320. The cubic root of 19854404 is about 270.7814762305.

The spelling of 19854404 in words is "nineteen million, eight hundred fifty-four thousand, four hundred four".