19804414 has 16 divisors (see below), whose sum is σ = 34010208. Its totient is φ = 8472672.

The previous prime is 19804399. The next prime is 19804417. The reversal of 19804414 is 41440891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19804417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11472 + ... + 13084.

It is an arithmetic number, because the mean of its divisors is an integer number (2125638).

Almost surely, 2^19804414 is an apocalyptic number.

19804414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19804414 is a deficient number, since it is larger than the sum of its proper divisors (14205794).

19804414 is a wasteful number, since it uses less digits than its factorization.

19804414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 19804414 is about 4450.2150509835. The cubic root of 19804414 is about 270.5540247179.

The spelling of 19804414 in words is "nineteen million, eight hundred four thousand, four hundred fourteen".